Document and Entity Information Document - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Mar. 08, 2019 |
Jun. 30, 2018 |
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| Entity Information [Line Items] | |||
| Entity Registrant Name | Pixelworks, Inc. | ||
| Entity Central Index Key | 0001040161 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Filer Category | Smaller Reporting Accelerated Filer | ||
| Document Type | 10-K | ||
| Document Period End Date | Dec. 31, 2018 | ||
| Document Fiscal Year Focus | 2018 | ||
| Document Fiscal Period Focus | FY | ||
| Amendment Flag | false | ||
| Entity Common Stock, Shares Outstanding | 37,535,119 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Voluntary Filers | No | ||
| Entity Current Reporting Status | Yes | ||
| Entity Public Float, Share Price | $ 3.61 | ||
| Entity Public Float | $ 113,055,630 |
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- Definition If the value is true, then the document is an amendment to previously-filed/accepted document. No definition available.
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- Definition End date of current fiscal year in the format --MM-DD. No definition available.
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- Definition This is focus fiscal period of the document report. For a first quarter 2006 quarterly report, which may also provide financial information from prior periods, the first fiscal quarter should be given as the fiscal period focus. Values: FY, Q1, Q2, Q3, Q4, H1, H2, M9, T1, T2, T3, M8, CY. No definition available.
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- Definition This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006. No definition available.
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- Definition The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented. If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD. No definition available.
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- Definition The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word "Other". No definition available.
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- Definition A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument. No definition available.
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- Definition Indicate "Yes" or "No" whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Indicate whether the registrant is one of the following: (1) Large Accelerated Filer, (2) Accelerated Filer, (3) Non-accelerated Filer, (4) Smaller Reporting Company (Non-accelerated) or (5) Smaller Reporting Accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition State aggregate market value of voting and non-voting common equity held by non-affiliates computed by reference to price at which the common equity was last sold, or average bid and asked price of such common equity, as of the last business day of registrant's most recently completed second fiscal quarter. The public float should be reported on the cover page of the registrants form 10K. No definition available.
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- Definition The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Indicate "Yes" or "No" if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. No definition available.
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- Definition Indicate "Yes" or "No" if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A. No definition available.
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| X | ||||||||||
- Definition The closing price of a share of the entity's common stock as of the last business day of the most recently completed second fiscal quarter. This share price is used to calculate the aggregate market value of the entity's common stock held by non-affiliates. No definition available.
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| X | ||||||||||
- Definition Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due after one year (or beyond the operating cycle if longer), including liabilities for compensation costs, fringe benefits other than pension and postretirement obligations, rent, contractual rights and obligations, and statutory obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all domestic and foreign income tax obligations due beyond one year or the operating cycle, whichever is longer. Alternate captions include income taxes payable, noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Represents the caption on the face of the balance sheet to indicate that the entity has entered into (1) purchase or supply arrangements that will require expending a portion of its resources to meet the terms thereof, and (2) is exposed to potential losses or, less frequently, gains, arising from (a) possible claims against a company's resources due to future performance under contract terms, and (b) possible losses or likely gains from uncertainties that will ultimately be resolved when one or more future events that are deemed likely to occur do occur or fail to occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of par value plus amounts in excess of par value or issuance value for common stock issued. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Consolidated Balance Sheets (Parenthetical) - $ / shares |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Preferred stock, par value | $ 0.001 | $ 0.001 |
| Preferred stock, shares authorized | 50,000,000 | 50,000,000 |
| Preferred stock, shares issued | 0 | 0 |
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares authorized | 250,000,000 | 250,000,000 |
| Common stock, shares issued | 36,937,458 | 34,651,087 |
| Common stock, shares outstanding | 36,937,458 | 34,651,087 |
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands |
12 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Income Statement [Abstract] | ||||||||||||||||
| Revenue, net (1) | [1] | $ 76,554 | $ 80,637 | $ 53,390 | ||||||||||||
| Cost of revenue (2) | [2] | 37,076 | 38,873 | 28,322 | ||||||||||||
| Gross profit | 39,478 | 41,764 | 25,068 | |||||||||||||
| Operating expenses: | ||||||||||||||||
| Research and development (3) | [3] | 22,881 | 21,427 | 19,036 | ||||||||||||
| Selling, general and administrative (4) | [4] | 19,953 | 20,450 | 13,770 | ||||||||||||
| Restructuring | 1,464 | 1,920 | 2,608 | |||||||||||||
| Total operating expenses | 44,298 | 43,797 | 35,414 | |||||||||||||
| Loss from operations | (4,820) | (2,033) | (10,346) | |||||||||||||
| Interest income (expense) and other, net (5) | [5] | 647 | (1,647) | (406) | ||||||||||||
| Loss before income taxes | (4,173) | (3,680) | (10,752) | |||||||||||||
| Provision for income taxes (6) | [6] | 448 | 493 | 355 | ||||||||||||
| Net loss | $ (4,621) | $ (4,173) | $ (11,107) | |||||||||||||
| Net loss per share - basic and diluted | $ (0.13) | $ (0.13) | $ (0.39) | |||||||||||||
| Weighted average shares outstanding - basic and diluted | 35,959 | 31,507 | 28,276 | |||||||||||||
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
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| X | ||||||||||
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. No definition available.
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
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| X | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
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| X | ||||||||||
- Definition Amortization of acquired developed technology No definition available.
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| X | ||||||||||
- Definition Amortization of Deferred Revenue Fair Value Adjustment No definition available.
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| X | ||||||||||
- Definition Amortization of Intangible Assets and Inventory Fair Value Adjustment No definition available.
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| X | ||||||||||
- Definition Fair Value Adjustment of Convertible Debt No definition available.
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| X | ||||||||||
- Definition Tax Cuts and Jobs Act, Income Tax Expense (Benefit) No definition available.
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| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Consolidated Statement of Comprehensive Loss - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Net loss | $ (4,621) | $ (4,173) | $ (11,107) |
| Other comprehensive income (loss): | |||
| Foreign pension adjustment | (6) | 14 | 6 |
| Tax effect of foreign pension adjustment | 3 | (4) | (2) |
| Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax | (2) | 0 | 0 |
| Total comprehensive loss | $ (4,626) | $ (4,163) | $ (11,103) |
| X | ||||||||||
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive (income) loss for defined benefit plan, attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amortization of Intangible Assets and Inventory Fair Value Adjustment No definition available.
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| X | ||||||||||
- Definition Amortization of acquired intangible assets No definition available.
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| X | ||||||||||
- Definition Acquisitions of property and equipment and other assets under extended payment terms. No definition available.
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| X | ||||||||||
- Definition Reversal of previously recorded tax contingencies due to the expiration of applicable statutes of limitation. No definition available.
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| X | ||||||||||
- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate amount of expenses incurred but not yet paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) in prepaid expenses, and assets classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of cash paid for interest. Includes, but is not limited to, payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of addition (reduction) to the amount at which a liability could be incurred (settled) in a current transaction between willing parties. No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow to acquire debt and equity securities not classified as either held-to-maturity securities or trading securities which would be classified as available-for-sale securities and reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash inflow from issuance of shares under share-based compensation arrangement. Issuance includes, but is not limited to, exercise of stock options and similar instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of cash outflow for the payment of debt classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Value of stock issued pursuant to acquisitions during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments, of appreciation (loss) in value of unsold available-for-sale securities. Excludes amounts related to other than temporary impairment (OTTI) loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares issued during the period as a result of the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of shares (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of any shares forfeited. Shares issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The gross value of stock issued during the period upon the conversion of convertible securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Value of stock (or other type of equity) issued during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP), net of stock value of such awards forfeited. Stock issued could result from the issuance of restricted stock, the exercise of stock options, stock issued under employee stock purchase plans, and/or other employee benefit plans. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. No definition available.
|
Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Tax effect of foreign pension adjustment | $ (3) | $ 4 | $ 2 |
| X | ||||||||||
- Definition Tax amount of the increase (decrease) in accumulated other comprehensive income (loss) related to pension and other postretirement benefit plans, attributable to the parent entity. No definition available.
|
Basis of Presentation |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |
| Basis of Presentation | BASIS OF PRESENTATION Nature of Business Pixelworks designs, develops and markets visual display processing semiconductors, intellectual property cores, software and custom application specific integrated circuits ("ASIC") solutions for high-quality energy efficient video applications. In addition, we offer a suite of solutions for advanced media processing and the efficient delivery and streaming of video. We enable worldwide manufacturers to offer leading-edge consumer electronics and professional display products, as well as video delivery and streaming solutions for content service providers. Our core visual display processing technology intelligently processes digital images and video from a variety of sources and optimizes the content for a superior viewing experience. Pixelworks’ video coding technology reduces storage requirements, significantly reduces bandwidth constraint issues and converts content between multiple formats to enable seamless delivery of video, including over-the-air (OTA) streaming, while also maintaining end-to-end content security. The rapid growth in video-capable consumer devices, especially mobile, has increased the demand for visual display processing and video delivery technology in recent years. Our technologies can be applied to a wide range of devices from large-screen projectors to low-power mobile tablets, smartphones, high-quality video infrastructure equipment and streaming devices. Our products are architected and optimized for power, cost, bandwidth, and overall system performance, according to the requirements of the specific application. Our primary target markets include digital projection systems, tablets, smartphones, and OTA streaming devices. As of December 31, 2018, we had an intellectual property portfolio of 361 patents related to the visual display of digital image data. We focus our research and development efforts on developing video algorithms that improve quality, and architectures that reduce system power, cost, bandwidth and increase overall system performance and device functionality. We seek to expand our technology portfolio through internal development and co-development with business partners, and we continually evaluate acquisition opportunities and other ways to leverage our technology into other high-value markets. Pixelworks was founded in 1997 and is incorporated under the laws of the state of Oregon. On August 2, 2017, we acquired ViXS Systems, Inc., a corporation organized in Canada (“ViXS”). Our consolidated financial statements include the accounts of Pixelworks and its wholly-owned subsidiaries. Intercompany accounts and transactions have been eliminated. All foreign subsidiaries use the U.S. dollar as the functional currency, and as a result, transaction gains and losses are included in the consolidated statements of operations. Transaction losses were $178, $172 and $153 for the years ended December 31, 2018, 2017 and 2016, respectively. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires us to make estimates and judgments that affect amounts reported in the financial statements and accompanying notes. Our significant estimates and judgments include those related to revenue recognition, valuation of excess and obsolete inventory, lives and recoverability of equipment and other long-lived assets, valuation of goodwill, stock-based compensation and income taxes. The actual results experienced could differ materially from our estimates. |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Significant Accounting Policies | SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Cash and Cash Equivalents We classify all cash and highly liquid investments with original maturities of three months or less at the date of purchase as cash and cash equivalents. Cash equivalents, which consist of U.S. denominated money market funds, commercial paper and corporate debt securities totaled $13,887 and $23,402 as of December 31, 2018 and 2017, respectively. Marketable Securities Our investments in marketable securities are classified as available-for-sale. Available-for-sale securities are stated at fair value based on quoted market prices with unrealized holding gains or losses, net of tax, included in accumulated other comprehensive income (loss), a component of shareholders’ equity. The cost of securities sold is based on the specific identification method. Accounts Receivable Accounts receivable are recorded at invoiced amount and do not bear interest when recorded or accrue interest when past due. We maintain an allowance for doubtful accounts for estimated losses that may result from the inability of our customers to make required payments. At the end of each reporting period, we estimate the allowance for doubtful accounts based on an account-by-account risk analysis of outstanding receivable balances. The determination to write-off specific accounts receivable balances is made based on the likelihood of collection and past due status. Past due status is based on invoice date and terms specific to each customer. Inventories Inventories consist of finished goods and work-in-process, and are stated at the lower of standard cost (which approximates actual cost on a first-in, first-out basis) or market (net realizable value). Property and Equipment Property and equipment are stated at cost. Depreciation and amortization is calculated on a straight-line basis over the estimated useful life of the assets which are generally as follows:
The cost of property and equipment repairs and maintenance is expensed as incurred. Licensed Technology We have capitalized licensed technology assets in other long-term assets. These assets are stated at cost and are amortized on a straight-line basis over the term of the license or the estimated life of the asset, if the license is not contractually limited, which is generally two to five years. Useful Lives and Recoverability of Equipment and Other Long-Lived Assets We evaluate the remaining useful life and recoverability of equipment and other assets, including identifiable intangible assets, whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. If there is an indicator of impairment, we prepare an estimate of future, undiscounted cash flows expected to result from the use of each asset and its eventual disposition. If these cash flows are less than the carrying value of the asset, we adjust the carrying amount of the asset to its estimated fair value. We have concluded that the carrying value of our long-lived assets is recoverable as of December 31, 2018. Goodwill Goodwill is not amortized, rather tested, at least annually, for impairment at a reporting unit level. Impairment of goodwill is the condition that exists when the carrying amount of a reporting unit that includes goodwill exceeds its fair value. A goodwill impairment loss is recognized for the amount that the carrying amount of the reporting unit, including goodwill, exceeds its fair value, limited to the total amount of goodwill allocated to that reporting unit. If the fair value of a reporting unit exceeds the carrying amount, goodwill of the reporting unit is not considered impaired. We evaluate impairment using the guidance set forth in FASB Accounting Standards Update No. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04") which states that an entity may first assess qualitative factors to determine whether it is necessary to perform the quantitative goodwill impairment test. If determined to be necessary, the quantitative impairment test shall be used to identify goodwill impairment and measure the amount of goodwill impairment loss to be recognized. An entity has an unconditional option to bypass the qualitative assessment for any reporting unit in any period and proceed directly to the quantitative goodwill impairment test. Accordingly, we have elected to bypass the qualitative assessment and proceed directly to the quantitative goodwill impairment test. We tested goodwill for impairment under the quantitative goodwill impairment test during the fourth quarter of 2018 and concluded that goodwill was not impaired. Revenue Recognition On January 1, 2018 we adopted the new requirements of Accounting Standards Codification 606, Revenue from Contracts with Customers ("ASC 606"), under the modified retrospective approach. Therefore, the requirements of ASC 606 have only been applied to existing contracts (those for which the entity has remaining performance obligations) as of, and new contracts after, the date of initial application, or January 1, 2018. ASC 606 is not applied to contracts that were completed before the effective date. The adoption of this new standard did not result in an adjustment to our consolidated financial statements but we have included additional disclosures in our periodic reports. We cannot guarantee that there will be no unforeseen effects of this new standard on our financial statements in the future. Revenue is recognized when control of the promised good or service is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Our principal revenue generating activities consist of the following: Product Sales - We sell integrated circuit products, also known as “chips” or “ICs”, based upon a customer purchase order, which includes a fixed price per unit. We have elected to account for shipping and handling as activities to fulfill the promise to transfer the goods, and not evaluate whether these activities are promised services to the customer. We generally satisfy our single performance obligation upon shipment of the goods to the customer and recognize revenue at a point in time upon shipment of the underlying product. Our shipments are subject to limited return rights subject to our limited warranty for our products sold. In addition, we may provide other credits to certain customers pursuant to price protection and stock rotation rights, all of which are considered variable consideration when estimating the amount of revenue to recognize. We use the “most likely amount” method to determine the amount of consideration to which we are entitled. Our estimate of variable consideration is reassessed at the end of each reporting period based on changes in facts and circumstances. Historically, returns and credits have not been material. Engineering Services - We enter into contracts for professional engineering services that include software development and customization. We identify each performance obligation in our engineering services agreements (“ESAs”) at contract inception. The ESA generally includes project deliverables specified by the customer. The performance obligations in the ESA are generally combined into one deliverable, with the pricing for services stated at a fixed amount. Services provided under the ESA generally result in the transfer of control over time. We recognize revenue on ESAs based on the proportion of labor hours expended to the total hours expected to complete the contract performance obligation. ESAs could include substantive customer acceptance provisions. In ESAs that include substantive customer acceptance provisions, we recognize revenue upon customer acceptance. Other - From time-to-time, we enter into arrangements for other revenue generating activities, such as providing technical support services to customers through technical support agreements. In each circumstance, we evaluate such arrangements for our performance obligations which generally results in the transfer of control for such services over time. Historically, such arrangements have not been material to our operating results. The following table provides information about disaggregated revenue based on the preceding categories for the year ended December 31, 2018:
For segment information, including revenue by geographic region, see "Note 14: Segment Information". Our contract balances include accounts receivable, deferred revenue and our liability for warranty returns. For information concerning these contract balances, see "Note 4: Balance Sheet Components". Payment terms and conditions for goods and services provided vary by contract; however, payment is generally required within 30 to 60 days of invoicing. As a practical expedient, we do not adjust the amount of consideration for this financing component as the period between the transfer of goods or services and the customer’s payment is, at contract inception, expected to be one year or less. We have not identified any material costs incurred associated with obtaining a contract with a customer which would meet the criteria to be capitalized, therefore, these costs are expensed as incurred. We have not disclosed the aggregate amount of the transaction price allocated to unsatisfied performance obligations because all of our revenue contracts have an original expected duration of one year or less. Warranty Program We warrant that our products will be free from defects in material and workmanship for a period of twelve months from delivery. Warranty repairs are guaranteed for the remainder of the original warranty period. Our warranty is limited to repairing or replacing products, or refunding the purchase price. At the end of each reporting period, we estimate a reserve for warranty returns based on historical experience and knowledge of any applicable events or transactions. The reserve for warranty returns is included in accrued liabilities in our consolidated balance sheets. Stock-Based Compensation We currently sponsor a stock incentive plan that allows for issuance of employee stock options and restricted stock awards, including restricted stock units. We also have an employee stock purchase plan for all eligible employees. The fair value of share-based payment awards is expensed straight-line over the requisite service period, which is generally the vesting period, for the entire award. Additionally, any modification of an award that increases its fair value will require us to recognize additional expense. The fair value of our stock option grants and purchase rights under our employee stock purchase plan are estimated as of the grant date using the Black-Scholes option pricing model which is affected by our estimates of the risk free interest rate, our expected dividend yield, expected term and the expected share price volatility of our common shares over the expected term. The fair value of our restricted stock awards are based on the market value of our stock on the date of grant. Research and Development Costs associated with research and development activities are expensed as incurred, except for items with alternate future uses which are capitalized and depreciated over their estimated useful lives. On occasion, we enter into co-development arrangements with current or prospective customers to defray a portion of the research and development expenses we expect to incur in connection with our development of an IC product. As amounts become due and payable, they are offset against research and development expense on a pro-rata basis. Income Taxes We account for income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between financial statement carrying amounts and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. We establish a valuation allowance to reduce deferred tax assets if it is "more likely than not" that a portion or all of the asset will not be realized in future tax returns. An uncertain tax position represents treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes. Until these positions are sustained by the taxing authorities, we do not recognize the tax benefits resulting from such positions and report the tax effects for uncertain tax positions in our consolidated balance sheets. Accumulated Other Comprehensive Income Accumulated other comprehensive income, net of tax, consists of the following:
Risks and Uncertainties Concentration of Suppliers We do not own or operate a semiconductor fabrication facility and do not have the resources to manufacture our products internally. We rely on a limited number of foundries and assembly and test vendors to produce all of our wafers and for completion of finished products. We do not have any long-term agreements with any of these suppliers. In light of these dependencies, it is reasonably possible that failure to perform by one of these suppliers could have a severe impact on our results of operations. Additionally, the concentration of these vendors within Taiwan, and the People’s Republic of China increases our risk of supply disruption due to natural disasters, economic instability, political unrest or other regional disturbances. Risk of Technological Change The markets in which we compete, or seek to compete, are subject to rapid technological change, frequent new product introductions, changing customer requirements for new products and features, and evolving industry standards. The introduction of new technologies and the emergence of new industry standards could render our products less desirable or obsolete, which could harm our business. Concentrations of Credit Risk Financial instruments that potentially subject us to concentrations of credit risk consist of cash equivalents and accounts receivable. We limit our exposure to credit risk associated with cash equivalent balances by holding our funds in high quality, highly liquid money market accounts. We limit our exposure to credit risk associated with accounts receivable by carefully evaluating creditworthiness before offering terms to customers. Recent Accounting Pronouncements In November 2018, the FASB issued Accounting Standards Update No. 2018-18, Collaborative Arrangements: Clarifying the Interaction Between Topic 808 and Topic 606 ("ASU 2018-18"). ASU 2018-18 requires transactions in collaborative arrangements to be accounted for under ASC 606 if the counterparty is a customer for a good or service (or bundle of goods and services) that is a distinct unit of account. The amendments also preclude entities from presenting consideration from transactions with a collaborator that is not a customer together with revenue recognized from contracts with customers. ASU 2018-18 is effective for fiscal years beginning after December 15, 2019, and interim periods in those fiscal years. We are currently assessing the impact of this update on our financial position, results of operations or cash flows. In June 2018, the FASB issued Accounting Standards Update No. 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Non-employee Share-Based Payment Accounting ("ASU 2018-07"). ASU 2017-01 reduces cost and complexity and improves financial reporting for share-based payments issued to non-employees (for example, service providers, external legal counsel, suppliers, etc.). We elected to early adopt ASU 2018-07 on July 1, 2018. The adoption of this update did not have a material impact on our financial position, results of operations, or cash flows. In January 2017, the FASB issued Accounting Standards Update No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business ("ASU 2017-01"). ASU 2017-01 clarifies the definition of a business and provides further guidance for evaluating whether a transaction will be accounted for as an acquisition of an asset or a business. ASU 2017-01 became effective for us on January 1, 2018, with early adoption permitted. The adoption of this update on January 1, 2018 did not have a material impact on our financial position, results of operations, or cash flows. In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) ("ASU 2016-02"), which requires lessees to recognize leases on-balance sheet and disclose key information about leasing arrangements. Topic 842 was subsequently amended by ASU No. 2018-01, Land Easement Practical Expedient for Transition to Topic 842; ASU No. 2018-10, Codification Improvements to Topic 842; and ASU No. 2018-11, Targeted Improvements. The new standard establishes a right-of-use model ("ROU") that requires a lessee to recognize a ROU asset and lease liability on the balance sheet for all leases with a term longer than 12 months. Leases will be classified as finance or operating, with classification affecting the pattern and classification of expense recognition in the income statement. The new standard is effective for us on January 1, 2019. A modified retrospective transition approach is required, applying the new standard to all leases existing at the date of initial application. An entity may choose to use either (1) its effective date or (2) the beginning of the earliest comparative period presented in the financial statements as its date of initial application. If an entity chooses the second option, the transition requirements for existing leases also apply to leases entered into between the date of initial application and the effective date. The entity must also recast its comparative period financial statements and provide the disclosures required by the new standard for the comparative periods. We expect to adopt the new standard on January 1, 2019 and use the effective date as our date of initial application. Consequently, financial information will not be updated, and the disclosures required under the new standard will not be provided for dates and periods before January 1, 2019. The new standard provides a number of optional practical expedients in transition. We expect to elect the “practical expedient package,” which permits us not to reassess under the new standard our prior conclusions about lease identification, lease classification and initial direct costs. We do not expect to elect the use-of-hindsight or the practical expedient pertaining to land easements; the latter not being applicable to us. We expect this standard will have a material effect on our financial statements. While we continue to assess all of the effects of adoption, we currently believe the most significant effects relate to (1) the recognition of new ROU assets and lease liabilities on our balance sheet for our office operating leases; and (2) providing significant new disclosures about our leasing activities. The new standard also provides practical expedients for an entity’s ongoing accounting. We currently expect to elect the short-term lease recognition exemption for all leases that qualify. This means, for those leases that qualify, we will not recognize ROU assets or lease liabilities, and this includes not recognizing ROU assets or lease liabilities for existing short-term leases of those assets in transition. We also currently expect to elect the practical expedient to not separate lease and non-lease components for all of our leases. On adoption, we currently expect to recognize additional operating lease liabilities ranging from $6,000 to $7,000 based on the present value of the remaining minimum rental payments under current leasing standards for existing operating leases. We expect to recognize ROU assets ranging from $5,500 to $6,500 which represents the operating lease liability adjusted for accrued rent and impairment of ROU assets. |
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- Definition The entire disclosure for all significant accounting policies of the reporting entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Acquisition |
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| Acquisition | ACQUISITION On August 2, 2017, we acquired 100% of the outstanding shares of ViXS (the "Acquisition"). We issued 0.04836 of a share of our common stock in exchange for each share of ViXS common stock outstanding and for certain ViXS restricted stock units which were vested simultaneously with closing. ViXS designs and develops advanced video processing semiconductor solutions. The Acquisition added families of video processor components for consumer applications and cloud, video delivery and infrastructure markets, along with a companion family of networking components to our solutions. These factors contributed to establishing the purchase price and supported the premium paid over the fair value of the tangible and intangible assets acquired. The aggregate purchase price for ViXS was $16,975 and consisted of $16,316 related to the issuance of 3,586,020 shares of our common stock plus $659 related to: (i) the issuance of 202,043 unvested restricted stock units, in exchange for ViXS’ unvested restricted stock units, plus (ii) the issuance of 122,242 shares to a holder of ViXS restricted stock units which were vested simultaneously with closing. The purchase price calculations were based on the closing price of our common stock on the day the transaction closed. The ViXS chief executive officer (the "CEO") was terminated in connection with the closing of the transaction. As a result, we recognized expense of $1,115, which consisted of $800 related to a severance agreement, payable over 24 months, and $315 related to accelerated vesting of the CEO’s ViXS restricted stock units which were exchanged for Pixelworks common stock at closing. Such amount was included within selling, general and administrative within our consolidated statement of operations for the year ended December 31, 2017. The purchase price was allocated to the assets and liabilities based on fair values as follows:
The allocation of the purchase price was based upon various estimates and assumptions. Below are the significant valuations that were performed in connection with the Acquisition:
We recorded gross deferred tax assets of $62,992, subject to a valuation allowance of $62,972 to recognize book basis and tax basis differences of various balance sheet assets and liabilities and corporate tax attributes acquired. The goodwill resulting from this transaction is not deductible for tax purposes. The results of ViXS’ operations are included in our consolidated statement of operations beginning on the date of acquisition. ViXS revenue of $4,489 and net loss of $(6,729), which included $1,920 in restructuring charges, (see Note 7: "Restructurings") and $3,633 of non-cash amortization of acquisition and debt related items are included in our consolidated statement of operations for the year ended December 31, 2017. |
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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Balance Sheet Components |
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| Balance Sheet Related Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Balance Sheet Components | BALANCE SHEET COMPONENTS Accounts Receivable, Net Accounts receivable consists of the following:
The following is a summary of the change in our allowance for doubtful accounts:
Inventories Inventories consist of the following:
We recorded inventory write-downs of $121 and $349 for the years ended December 31, 2018 and 2017, respectively. We recorded inventory write-downs of $301 for the year ended December 31, 2016, of which $285 was included in restructuring and was related to the write off of inventory associated with markets we are no longer pursuing. The inventory write-downs were for lower of cost or market and excess and obsolescence exposure. The inventory write-downs were offset by sales of previously written-down inventory of $152, $165 and $44 for the years ended December 31, 2018, 2017 and 2016, respectively. Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets consist of current prepaid expenses, deposits, income taxes receivable and other receivables. Property and Equipment, Net Property and equipment consists of the following:
Software amortization was $1,407, $1,501 and $1,755 for the years ended December 31, 2018, 2017 and 2016, respectively. Depreciation and amortization expense for equipment, furniture, fixtures, tooling and leasehold improvements was $2,148, $2,076 and $1,705 for the years ended December 31, 2018, 2017 and 2016, respectively. Other Assets, Net Other assets consist primarily of deposits, deferred tax assets and licensed technology. Acquired Intangible Assets, Net In connection with the Acquisition, we recorded certain identifiable intangible assets. See Note 3: “Acquisition” for additional information. Acquired intangible assets resulting from this transaction consist of the following:
Intangible assets are amortized over the following estimated useful lives: developed technology and customer relationships, 3 to 5 years; tradename and backlog, 6 to 18 months. Backlog was fully amortized as of December 31, 2018. Amortization expense for intangible assets was $1,648 for the year ended December 31, 2018, with $1,244 included in cost of revenue and $404 included in selling, general and administrative on the consolidated statement of operations. As of December 31, 2018, future estimated amortization expense is as follows:
Acquired intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. Conditions that would trigger an impairment assessment include, but are not limited to, past, current, or expected cash flow or operating losses associated with the asset. There were no such triggering events requiring an impairment assessment of other intangible assets as of December 31, 2018. Goodwill Goodwill resulted from the Acquisition, whereby we recorded goodwill of $18,407. See Note 3: "Acquisition" for information concerning the acquisition. See Note 2: "Summary of Significant Accounting Policies" for information on our assessment of goodwill impairment. Accrued Liabilities and Current Portion of Long-Term Liabilities Accrued liabilities and current portion of long-term liabilities consist of the following:
The following is a summary of the change in deferred revenue and our liability for warranty returns:
Short-Term Line of Credit On December 21, 2010, we entered into a Loan and Security Agreement with Silicon Valley Bank (the "Bank"), which was amended on December 14, 2012, December 4, 2013, December 18, 2015, December 15, 2016, July 21, 2017, December 21, 2017 and December 18, 2018 (as amended, the "Revolving Loan Agreement"). The Revolving Loan Agreement provides a secured working capital-based revolving line of credit (the "Revolving Line") in an aggregate amount of up to the lesser of (i) $10,000, or (ii) $1,000 plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. The Revolving Line has a maturity date of December 27, 2019. In addition, the Revolving Loan Agreement provides for non-formula advances of up to $10,000 which may be made solely during the last five business days of any fiscal month or quarter and which must be repaid by the Company on or before the fifth business day after the applicable fiscal month or quarter end. Amounts advanced under the Revolving Line bear interest at an annual rate equal to the lender's prime rate plus 0.25%. The Revolving Loan Agreement, as amended also provides an option for LIBOR advances that bear interest based on the LIBOR rate. Interest on the Revolving Line is due monthly, with the balance due on December 27, 2019, which is the scheduled maturity date for the Revolving Line. The Revolving Loan Agreement, as amended contains customary affirmative and negative covenants, including with respect to the following: compliance with laws, provision of financial statements and periodic reports, payment of taxes, maintenance of inventory and insurance, maintenance of operating accounts at the Bank, the Bank's access to collateral, formation or acquisition of subsidiaries, incurrence of indebtedness, dispositions of assets, granting liens, changes in business, ownership or business locations, engaging in mergers and acquisitions, making investments or distributions and affiliate transactions. The covenants also require that the Company maintain a minimum ratio of qualifying financial assets to the sum of qualifying financial obligations. The Revolving Loan Agreement, as amended also contains customary events of default, including the following: defaults with respect to covenant compliance, the occurrence of a material adverse change, the occurrence of certain bankruptcy or insolvency events, cross-defaults, judgment defaults and material misrepresentations. The occurrence of an event of default could result in the acceleration of the Company's obligations under the Revolving Loan Agreement, as amended and an increase to the applicable interest rate, and would permit the Bank to exercise remedies with respect to its security interest. To secure the repayment of any amounts borrowed under the Revolving Loan Agreement, as amended, the Company granted to the Bank a security interest in substantially all of its assets, excluding its intellectual property assets. The Company has agreed not to pledge or otherwise encumber its intellectual property assets without prior written permission from the Bank. As of December 31, 2018 and December 31, 2017, we had no outstanding borrowings on the Revolving Line. |
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Convertible Debt |
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| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Convertible Debt | CONVERTIBLE DEBT As part of the Acquisition, we assumed secured convertible debt which consists of the following:
As a result of the change in control of ViXS, the convertible debt holders had a right to put the debt to the Company. A majority of the holders agreed to waive their right to accelerate and to accept 0.04836 share of our common stock for each share of ViXS common stock the holder would have been entitled to receive upon the exercise of the conversion option. On January 12, 2018, the Company provided notice to the holders of the convertible debt of its election to redeem the convertible debt in full as of March 13, 2018. Subsequently, certain holders of the convertible debt elected to convert their convertible debt into shares of common stock of Pixelworks pursuant to the terms of the convertible debt. This resulted in the issuance of 435,353 shares of our common stock which was valued at an aggregate of $2,646. We paid an aggregate of CAD $2,875 (equivalent to $2,220 USD) to redeem the convertible debt of those holders who did not elect to convert their convertible debt. The extinguishment of the debt during the first quarter of 2018 resulted in a gain of $1,272 which is recorded in interest income (expense) and other, net within our condensed consolidated statement of operations. For the year ended December 31, 2018, interest expense consisted of $66 related to the contractual rate of interest and $69 related to accretion of the discount. During the year ended December 31, 2018, we recorded net foreign currency losses of approximately $(15) in other expense. For the year ended December 31, 2017, interest expense consisted of $227 related to the contractual rate of interest and $196 related to accretion of the discount. During the year ended December 31, 2017, we recorded net foreign currency gains of approximately $(4) in other expense. |
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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Marketable Securities and Fair Value Measurements |
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| Fair Value Measurements | MARKETABLE SECURITIES AND FAIR VALUE MEASUREMENTS Marketable Securities As of December 31, 2018 and December 31, 2017, all of our marketable securities are classified as available-for-sale and consist of the following:
Unrealized holding gains and losses are recorded in accumulated other comprehensive income, a component of shareholders’ equity, in the condensed consolidated balance sheets. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Three levels of inputs may be used to measure fair value:
The following table presents information about our assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets as of December 31, 2018 and 2017:
We primarily use the market approach to determine the fair value of our financial instruments. The fair value of our current assets and liabilities, including accounts receivable and accounts payable approximates the carrying value due to the short-term nature of these balances. We have currently chosen not to elect the fair value option for any items that are not already required to be measured at fair value in accordance with U.S. GAAP. The fair value of the convertible debt conversion feature was calculated using the Tsiveriotis and Fernandes Convertible Debt Model. Three primary assumptions used in the calculations were: volatility of 60%, credit spread of 13.13% and risk free rate of 1.87%. The embedded conversion feature is measured at fair value on a recurring basis and included with convertible debt on our condensed consolidated balance sheet. Convertible debt was recorded at fair value in our condensed consolidated balance sheet on the date of the Acquisition, however fair value adjustments were not required after the Acquisition date. |
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- References No definition available.
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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Restructuring |
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| Restructuring and Related Activities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring | RESTRUCTURINGS In April 2018, we executed a restructuring plan to make the operation of the Company more efficient. The plan included an approximately 5% reduction in workforce, primarily in the areas of development, marketing and administration. The plan also included closing the Hong Kong office and reducing the size of the Toronto office. In September 2017, in connection with the Acquisition, we executed a restructuring plan to secure significant synergies between ViXS and Pixelworks. The plan included an approximately 15% reduction in workforce, primarily in the area of development, however, it also impacted administration and sales. In April 2016, we executed a restructuring plan to streamline the Company’s operations and product offerings and to align the Company’s expenses with current revenue levels. The plan included an approximately 24% reduction in workforce, primarily in the area of development, however, it also impacted operations, sales and marketing. The plan also included abandonment of certain assets resulting in impairment charges to write off the assets associated with markets we are no longer pursuing. Total restructuring expense included in our statement of operations for the years ended December 31, 2018, 2017 and 2016 is comprised of the following:
The following is a rollforward of the accrued liabilities related to restructuring for the year ended December 31, 2018:
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- References No definition available.
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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Research and Development (Notes) |
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Dec. 31, 2018 | |
| Research and Development [Abstract] | |
| Research and Development | RESEARCH AND DEVELOPMENT During the first quarter of 2017, we entered into a best efforts co-development agreement (the "Co-development Agreement") with a customer to defray a portion of the research and development expenses we incurred in connection with our development of an integrated circuit product to be sold exclusively to the customer. Our development costs exceeded the amounts received from the customer, and although we expect to sell units of the product to the customer, there is no commitment or agreement from the customer for such sales at this time. Additionally, we retain ownership of any modifications or improvements to our pre-existing intellectual property and may use such improvements in products sold to other customers. Under the co-development agreement, $4,000 was payable by the customer within 60 days of the date of the agreement and two additional payments of $2,000 were each payable upon completion of certain development milestones. As amounts became due and payable, they were offset against research and development expense on a pro rata basis. We recognized offsets to research and development expense of $4,000 related to the Co-development Agreement during each of the years ended December 31, 2018 and 2017. |
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- Definition The entire disclosure for collaborative arrangements in which the entity is a participant, including a) information about the nature and purpose of such arrangements; b) its rights and obligations thereunder; c) the accounting policy for collaborative arrangements; and d) the income statement classification and amounts attributable to transactions arising from the collaborative arrangement between participants. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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Interest Expense and Other, Net |
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| Other Income and Expenses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Interest Expense and Other, Net | INTEREST EXPENSE AND OTHER, NET Interest expense and other, consists of the following:
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- References No definition available.
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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes |
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| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Taxes | INCOME TAXES Current and Deferred Income Tax Expense Domestic and foreign pre-tax income (loss) is as follows:
Income tax expense attributable to operations is comprised of the following:
The reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows:
Deferred Tax Assets, Liabilities and Valuation Allowance Deferred income taxes reflect the net tax effects of temporary differences between the carrying amount of assets and liabilities for financial reporting purposes and the amounts for income tax purposes. Significant components of our deferred tax assets and liabilities are as follows:
The Company adopted ASU 2016-09 in the first quarter of 2017. The Company had excess tax benefits for which a benefit could not be previously recognized of approximately $485. Upon adoption the balance of the unrecognized excess tax benefits was reversed with the impact recorded to retained earnings including the change to the valuation allowance as a result of the adoption. The Tax Cuts and Jobs Act (the "Act") was enacted on December 22, 2017. The Act reduced the U.S. federal corporate tax rate from 35% to 21%, and required companies to pay a one-time transition tax on earnings of certain foreign subsidiaries that were previously tax deferred and creates new taxes on certain foreign sourced earnings. Due to a net operating loss position for U.S. tax purposes, the impact from the repatriation of our foreign earnings was not significant. Additionally, a tax on certain foreign earnings in excess of 10 percent of the foreign subsidiaries tangible assets (i.e., global intangible low-taxed income or “GILTI”) became effective during the current year. The calculation of GILTI did not result in an inclusion for the current year. We previously elected to treat the GILTI as a period cost. As of December 31, 2017 we recorded a receivable for our AMT tax credit carryforwards of $343 which is refundable under the Act. We expect to receive $172 of this credit during 2019. On December 22, 2017, Staff Accounting Bulletin No. 118 was issued to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared, or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Act. In accordance with SAB 118, we used provisional amounts and reasonable estimates at December 31, 2017 to estimate the impact of the Act. Additional analysis of historical foreign earnings was completed in the fourth quarter of 2018. We determined that there was no impact due to a full valuation allowance in the U.S. and the utilization of prior year net operating loss carryforwards against additional taxable income. We continue to record a full valuation allowance against our U.S. and Canadian net deferred tax assets as of December 31, 2018 and 2017, as it is not more likely than not that we will realize a benefit from these assets in a future period. We have not provided a valuation allowance against any of our foreign net deferred tax assets as we have concluded it is more likely than not that we will realize a benefit from these assets in a future period because our subsidiaries in these jurisdictions are cost-plus taxpayers. The net valuation allowance decreased $2,381 for the year ended December 31, 2018 and increased $30,867 and $1,555 for the years ended December 31, 2017, and 2016, respectively. As of December 31, 2018, we had federal, state and foreign net operating loss carryforwards of $199,591, $11,384 and $43,794 respectively, which will expire between 2019 and 2038. As of December 31, 2018, we had available federal, state and foreign research and experimentation tax credit carryforwards of $9,099, $4,360, and $28,334 respectively. The federal and state tax credits will begin expiring in 2019 while the foreign credits have an indefinite life. In addition, our Canadian subsidiary has unclaimed scientific and experimental expenditures to be carried forward and applied against future income in Canada of approximately $121,683. We have a general foreign tax credit of $818 which will begin expiring in 2019. Our ability to utilize our federal net operating losses may be limited by Section 382 of the Internal Revenue Code of 1986, as amended, which imposes an annual limit on the ability of a corporation that undergoes an "ownership change" to use its net operating loss carryforwards to reduce its tax liability. An ownership change is generally defined as a greater than 50% increase in equity ownership by 5% shareholders in any three-year period. We recognized all of the earnings of our foreign subsidiaries as part of the transition tax of the Act. As of December 31, 2018, we do not have a liability for unremitted foreign earnings. Our Chinese subsidiary is designated as an Advanced Technology Service Enterprise, allowing it to benefit from a Chinese tax holiday resulting in a reduction of its tax rate to 15% through 2018. The tax rate will return to 25% in 2019 upon expiration of the tax holiday. However, we are currently in the process of applying for an extension of the tax holiday. The impact of the extension of the tax holiday will be recognized in the quarter in which the extension has been approved by the tax authorities. Uncertain Tax Positions We have recorded tax liabilities to address potential exposures involving positions that could be challenged by taxing authorities. As of December 31, 2018 the amount of our uncertain tax positions was a liability of $1,661 and a reduction to deferred tax assets of $925. As of December 31, 2017, the amount of our uncertain tax positions was a liability of $1,735 and a reduction to deferred tax assets of $777. The following is a summary of the change in our liability for uncertain tax positions and interest and penalties:
During the years ended December 31, 2018, 2017 and 2016, we recognized $24, $46 and $26, respectively, of interest and penalties in income tax expense in our consolidated statements of operations. We file income tax returns in the U.S. and various foreign jurisdictions. A number of years may elapse before an uncertain tax position is resolved by settlement or statute of limitations. Settlement of any particular position could require the use of cash. If the uncertain tax positions we have accrued for are sustained by the taxing authorities in our favor, the reduction of the liability will reduce our effective tax rate. We reasonably expect reductions in the liability for unrecognized tax benefits and interest and penalties of approximately $130 within the next twelve months due to the expiration of statutes of limitation in foreign jurisdictions. We are no longer subject to U.S. federal, state, and foreign examinations for years before 2015, 2014 and 2011, respectively. Our net operating loss and tax credit carryforwards from all years may be subject to adjustment for three years following the year in which utilized. We do not anticipate that any potential tax adjustments will have a significant impact on our financial position or results of operations. We were not subject to, nor have we received any notice of, income tax examinations in any jurisdiction as of December 31, 2018. |
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- References No definition available.
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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments and Contingencies |
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| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies | COMMITMENTS AND CONTINGENCIES Royalties We license technology from third parties and have agreed to pay certain suppliers a royalty based on the number of chips sold or manufactured, the net sales price of the chips containing the licensed technology or a fixed non-cancelable fee. Royalty expense is recognized based on our estimated average unit cost for royalty contracts with non-cancelable prepayments and the stated contractual per unit rate for all other agreements. Royalty expense was $742, $1,017 and $722 for the years ended December 31, 2018, 2017 and 2016, respectively, which is included in cost of revenue in our consolidated statements of operations. 401(k) Plan We sponsor a 401(k) plan for eligible employees. Participants may defer a percentage of their annual compensation on a pre-tax basis, not to exceed the dollar limit that is set by law. A discretionary matching contribution by the Company is allowed and is equal to a uniform percentage of the amount of salary reduction elected to be deferred, which percentage will be determined each year by the Company. We made no contributions to the 401(k) plan during the years ended December 31, 2018, 2017 and 2016. Leases We acquire rights to use certain software engineer design tools under software licenses, accounting for such arrangements is similar to capital leases. Our various office space and equipment leases are classified as operating leases. Certain of our leases for office space contain provisions under which monthly rent escalates over time and certain leases also contain provisions for reimbursement of a specified amount of leasehold improvements. When lease agreements contain escalating rent clauses, we recognize rent expense on a straight-line basis over the term of the lease. When lease agreements provide allowances for leasehold improvements, we capitalize the leasehold improvement assets and amortize them on a straight-line basis over the lesser of the lease term or the estimated useful life of the asset, and reduce rent expense on a straight-line basis over the term of the lease by the amount of the asset capitalized. When lease agreements provide rent holidays, we reduce rent expense on a straight-line basis over the term of the lease by the amount of the rent holiday. As of December 31, 2018, future minimum payments under non-cancelable software licenses and operating lease agreements are as follows:
Rent expense for the years ended December 31, 2018, 2017 and 2016 was $2,782, $2,488 and $1,770, respectively. Other Contractual Obligation As part of the Acquisition discussed in "Note 3: Acquisition", we acquired debt associated with an agreement with the Government of Canada called Technology Partnerships Canada ("TPC"). As part of the TPC agreement, ViXS Systems Inc. was provided funding to assist in research and development expenses of which a portion was later required to be repaid because the conditions for repayment were met. The scheduled payments are made on a quarterly basis and end in January 2024. As of December 31, 2018, $446 is included in accrued liabilities and current portion of long-term liabilities in our consolidated balance sheet and $562 is included in long-term liabilities, net of current portion in our consolidated balance sheet. Contract Manufacturers In the normal course of business, we commit to purchase products from our contract manufacturers to be delivered within the next 90 days. In certain situations, should we cancel an order, we could be required to pay cancellation fees. Such obligations could impact our immediate results of operations but would not materially affect our business. Indemnifications Certain of our agreements include limited indemnification provisions for claims from third-parties relating to our intellectual property. It is not possible for us to predict the maximum potential amount of future payments or indemnification costs under these or similar agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. We have not made any payments under these agreements in the past, and as of December 31, 2018, we have not incurred any material liabilities arising from these indemnification obligations. In the future, however, such obligations could immediately impact our results of operations but are not expected to materially affect our business. Legal Proceedings We are subject to legal matters that arise from time to time in the ordinary course of our business. Although we currently believe that resolving such matters, individually or in the aggregate, will not have a material adverse effect on our financial position, our results of operations, or our cash flows, these matters are subject to inherent uncertainties and our view of these matters may change in the future. |
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- Definition The entire disclosure for commitments and contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Earnings Per Share |
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| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share | EARNINGS PER SHARE Basic earnings per share amounts are computed based on the weighted average number of common shares outstanding. Diluted weighted average shares outstanding include the weighted average number of common shares outstanding plus potentially dilutive common shares outstanding during the period. The following schedule reconciles the computation of basic and diluted net loss per share (in thousands, except per share data):
The following shares were excluded from the calculation of diluted net loss per share as their effect would have been anti-dilutive (in thousands):
Potentially dilutive common shares from employee equity incentive plans are determined by applying the treasury stock method to the assumed exercise of outstanding stock options, the assumed vesting of outstanding restricted stock units, and the assumed issuance of common stock under the employee stock purchase plan. Potentially dilutive common shares from the convertible debt were determined by applying the if-converted method to the assumed conversion of the outstanding convertible debt. |
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- Definition The entire disclosure for earnings per share. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Shareholders' Equity |
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| Stockholders' Equity Note [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholders' Equity | SHAREHOLDERS’ EQUITY Preferred Stock The Company is authorized to issue 50,000,000 shares of preferred stock with a par value of $0.001 per share. The Board of Directors is authorized to fix or alter the rights, preferences, privileges and restrictions granted to, or imposed on, each series of preferred stock. There were no shares of preferred stock issued as of December 31, 2018 and 2017. Common Stock The Company is authorized to issue 250,000,000 shares of common stock with a par value of $0.001 per share. Shareholders of common stock have unlimited voting rights and are entitled to receive the net assets of the Company upon dissolution, subject to the rights of the preferred shareholders, if any. Employee Equity Incentive Plans On May 23, 2006, our shareholders approved the adoption of the Pixelworks, Inc. 2006 Stock Incentive Plan (the "2006 Plan"). The 2006 Plan has since been amended on certain occasions, most recently on May 9, 2018 when our shareholders approved an increase to the total number of authorized shares to 14,383,333 shares. As of December 31, 2018, 1,380,482 shares were available for grant under the 2006 Plan. Stock Options In May 2009, the 2006 Plan was modified to reduce the contractual life of newly issued stock option awards from ten to six years. Our new hire vesting schedule provides that each option becomes exercisable at a rate of 25% on the first anniversary date of the grant and 2.083% on the last day of every month thereafter for a total of 36 additional increments. Our merit vesting schedule provides that merit-type awards become exercisable monthly over a period of three years. The following is a summary of stock option activity:
The following table summarizes information about options outstanding as of December 31, 2018:
During the years ended December 31, 2018, 2017 and 2016 the total intrinsic value of options exercised was $1,698, $1,801 and $481, respectively, for which no income tax benefit has been recorded because a full valuation allowance has been provided for our U.S. deferred tax assets. As of December 31, 2018, options outstanding had a total intrinsic value of $357. Options outstanding that have vested and are expected to vest as of December 31, 2018 are as follows:
Restricted Stock The 2006 Plan provides for the issuance of restricted stock, including restricted stock units. During the years ended December 31, 2018, 2017 and 2016 we granted 1,346,440, 1,514,527, and 1,572,519 shares, respectively, of restricted stock with a weighted average grant date fair value of $4.24, $4.87, and $2.21 per share, respectively. The following is a summary of restricted stock activity:
Employee Stock Purchase Plans On May 18, 2010, our shareholders approved the adoption of the 2010 Pixelworks, Inc. Employee Stock Purchase Plan (the "ESPP") for U.S. employees and for certain foreign subsidiary employees. The ESPP provides for separate offering periods commencing on February 1 and August 1, with the first offering period beginning August 1, 2010. Each offering period continues for a period of 18 months with purchases every six months. Each eligible employee may purchase up to 3,000 shares of stock on each purchase date, with a maximum annual purchase amount of $25. The purchase price is equal to 85% of the lesser of the fair market value of the shares on the offering date or on the purchase date. A total of 1,300,000 shares of common stock have been reserved for issuance under the ESPP. During the years ended December 31, 2018, 2017 and 2016, we issued 181,960, 153,242 and 141,633 shares, respectively for proceeds of $420, $270 and $252, respectively, under the ESPP. Stock-Based Compensation Expense The fair value of stock-based compensation was determined using the Black-Scholes option pricing model and the following weighted average assumptions:
The weighted average fair value of options granted during the years ended December 31, 2018, 2017 and 2016 was $3.03, $2.58 and $1.41, respectively. The risk free interest rate is estimated using an average of treasury bill interest rates. The expected dividend yield is zero as we have not paid any dividends to date and do not expect to pay dividends in the future. Expected volatility is estimated based on the historical volatility of our common stock over the expected term as this represents our best estimate of future volatility. Subsequent to the May 2009 amendment of our 2006 Stock Incentive Plan, which shortened the contractual life of newly issued stock options from ten to six years, we have elected to use the "simplified method" to estimate expected term. Under the simplified method, an option's expected term is calculated as the average of its vesting period and original contractual life. The expected term of ESPP purchase rights is based on the estimated weighted average time to purchase. As of December 31, 2018, unrecognized stock-based compensation expense is $6,207, which is expected to be recognized as stock-based compensation expense over a weighted average period of 1.15 years. |
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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Segment Information |
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| Segment Reporting [Abstract] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Information | SEGMENT INFORMATION We have identified a single operating segment: the design and development of ICs for use in electronic display devices. Substantially all of our assets are located in the U.S. Geographic Information Revenue by geographic region, was as follows:
Significant Customers The percentage of revenue attributable to our distributors, top five end customers, and individual distributors or end customers that represented more than 10% of revenue in at least one of the periods presented, is as follows:
1 End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors. Each of the following accounts represented 10% or more of total accounts receivable in at least one of the periods presented:
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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Quarterly Financial Data (Unaudited) |
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly Financial Data (Unaudited) | QUARTERLY FINANCIAL DATA (UNAUDITED)
1 The three months ended December 31, 2018 includes $424 in restructuring expenses. The three months ended December 31, 2017 includes $949 for inventory step-up and backlog amortization, $621 for fair value adjustment on convertible debt conversion feature, and $439 in restructuring expenses. |
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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Policies) |
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| Accounting Policies [Abstract] | |||||||||||||||||||||||||
| Use of Estimates, Policy | The preparation of condensed consolidated financial statements in conformity with U.S. generally accepted accounting principles ("U.S. GAAP") requires us to make estimates and judgments that affect amounts reported in the financial statements and accompanying notes. Our significant estimates and judgments include those related to revenue recognition, valuation of excess and obsolete inventory, lives and recoverability of equipment and other long-lived assets, valuation of goodwill, stock-based compensation and income taxes. The actual results experienced could differ materially from our estimates. |
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| Cash and Cash Equivalents, Policy | We classify all cash and highly liquid investments with original maturities of three months or less at the date of purchase as cash and cash equivalents. Cash equivalents, which consist of U.S. denominated money market funds, commercial paper and corporate debt securities totaled $13,887 and $23,402 as of December 31, 2018 and 2017, respectively. |
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| Marketable Securities, Policy | Our investments in marketable securities are classified as available-for-sale. Available-for-sale securities are stated at fair value based on quoted market prices with unrealized holding gains or losses, net of tax, included in accumulated other comprehensive income (loss), a component of shareholders’ equity. The cost of securities sold is based on the specific identification method. |
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| Accounts Receivable, Policy | Accounts receivable are recorded at invoiced amount and do not bear interest when recorded or accrue interest when past due. We maintain an allowance for doubtful accounts for estimated losses that may result from the inability of our customers to make required payments. At the end of each reporting period, we estimate the allowance for doubtful accounts based on an account-by-account risk analysis of outstanding receivable balances. The determination to write-off specific accounts receivable balances is made based on the likelihood of collection and past due status. Past due status is based on invoice date and terms specific to each customer. |
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| Inventories, Policy | Inventories consist of finished goods and work-in-process, and are stated at the lower of standard cost (which approximates actual cost on a first-in, first-out basis) or market (net realizable value). |
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| Property and Equipment, Policy | Property and equipment are stated at cost. Depreciation and amortization is calculated on a straight-line basis over the estimated useful life of the assets which are generally as follows:
The cost of property and equipment repairs and maintenance is expensed as incurred. |
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| Licensed Technology, Policy | We have capitalized licensed technology assets in other long-term assets. These assets are stated at cost and are amortized on a straight-line basis over the term of the license or the estimated life of the asset, if the license is not contractually limited, which is generally two to five years. |
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| Useful Lives and Recoverability of Equipment and Other Long-Lived Assets, Policy | If there is an indicator of impairment, we prepare an estimate of future, undiscounted cash flows expected to result from the use of each asset and its eventual disposition. If these cash flows are less than the carrying value of the asset, we adjust the carrying amount of the asset to its estimated fair value. |
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| Goodwill, Policy | Goodwill is not amortized, rather tested, at least annually, for impairment at a reporting unit level. Impairment of goodwill is the condition that exists when the carrying amount of a reporting unit that includes goodwill exceeds its fair value. A goodwill impairment loss is recognized for the amount that the carrying amount of the reporting unit, including goodwill, exceeds its fair value, limited to the total amount of goodwill allocated to that reporting unit. If the fair value of a reporting unit exceeds the carrying amount, goodwill of the reporting unit is not considered impaired. We evaluate impairment using the guidance set forth in FASB Accounting Standards Update No. 2017-04, Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment ("ASU 2017-04") which states that an entity may first assess qualitative factors to determine whether it is necessary to perform the quantitative goodwill impairment test. If determined to be necessary, the quantitative impairment test shall be used to identify goodwill impairment and measure the amount of goodwill impairment loss to be recognized. An entity has an unconditional option to bypass the qualitative assessment for any reporting unit in any period and proceed directly to the quantitative goodwill impairment test. Accordingly, we have elected to bypass the qualitative assessment and proceed directly to the quantitative goodwill impairment test. We tested goodwill for impairment under the quantitative goodwill impairment test during the fourth quarter of 2018 and concluded that goodwill was not impaired. |
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| Revenue Recognition | Revenue Recognition On January 1, 2018 we adopted the new requirements of Accounting Standards Codification 606, Revenue from Contracts with Customers ("ASC 606"), under the modified retrospective approach. Therefore, the requirements of ASC 606 have only been applied to existing contracts (those for which the entity has remaining performance obligations) as of, and new contracts after, the date of initial application, or January 1, 2018. ASC 606 is not applied to contracts that were completed before the effective date. The adoption of this new standard did not result in an adjustment to our consolidated financial statements but we have included additional disclosures in our periodic reports. We cannot guarantee that there will be no unforeseen effects of this new standard on our financial statements in the future. Revenue is recognized when control of the promised good or service is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Our principal revenue generating activities consist of the following: Product Sales - We sell integrated circuit products, also known as “chips” or “ICs”, based upon a customer purchase order, which includes a fixed price per unit. We have elected to account for shipping and handling as activities to fulfill the promise to transfer the goods, and not evaluate whether these activities are promised services to the customer. We generally satisfy our single performance obligation upon shipment of the goods to the customer and recognize revenue at a point in time upon shipment of the underlying product. Our shipments are subject to limited return rights subject to our limited warranty for our products sold. In addition, we may provide other credits to certain customers pursuant to price protection and stock rotation rights, all of which are considered variable consideration when estimating the amount of revenue to recognize. We use the “most likely amount” method to determine the amount of consideration to which we are entitled. Our estimate of variable consideration is reassessed at the end of each reporting period based on changes in facts and circumstances. Historically, returns and credits have not been material. Engineering Services - We enter into contracts for professional engineering services that include software development and customization. We identify each performance obligation in our engineering services agreements (“ESAs”) at contract inception. The ESA generally includes project deliverables specified by the customer. The performance obligations in the ESA are generally combined into one deliverable, with the pricing for services stated at a fixed amount. Services provided under the ESA generally result in the transfer of control over time. We recognize revenue on ESAs based on the proportion of labor hours expended to the total hours expected to complete the contract performance obligation. ESAs could include substantive customer acceptance provisions. In ESAs that include substantive customer acceptance provisions, we recognize revenue upon customer acceptance. Other - From time-to-time, we enter into arrangements for other revenue generating activities, such as providing technical support services to customers through technical support agreements. In each circumstance, we evaluate such arrangements for our performance obligations which generally results in the transfer of control for such services over time. Historically, such arrangements have not been material to our operating results. |
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| Warranty Program, Policy | We warrant that our products will be free from defects in material and workmanship for a period of twelve months from delivery. Warranty repairs are guaranteed for the remainder of the original warranty period. Our warranty is limited to repairing or replacing products, or refunding the purchase price. At the end of each reporting period, we estimate a reserve for warranty returns based on historical experience and knowledge of any applicable events or transactions. The reserve for warranty returns is included in accrued liabilities in our consolidated balance sheets. |
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| Share-Based Compensation, Policy | We currently sponsor a stock incentive plan that allows for issuance of employee stock options and restricted stock awards, including restricted stock units. We also have an employee stock purchase plan for all eligible employees. The fair value of share-based payment awards is expensed straight-line over the requisite service period, which is generally the vesting period, for the entire award. Additionally, any modification of an award that increases its fair value will require us to recognize additional expense. The fair value of our stock option grants and purchase rights under our employee stock purchase plan are estimated as of the grant date using the Black-Scholes option pricing model which is affected by our estimates of the risk free interest rate, our expected dividend yield, expected term and the expected share price volatility of our common shares over the expected term. The fair value of our restricted stock awards are based on the market value of our stock on the date of grant. |
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| Research and Development, Policy | Costs associated with research and development activities are expensed as incurred, except for items with alternate future uses which are capitalized and depreciated over their estimated useful lives. On occasion, we enter into co-development arrangements with current or prospective customers to defray a portion of the research and development expenses we expect to incur in connection with our development of an IC product. As amounts become due and payable, they are offset against research and development expense on a pro-rata basis. |
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| Income Taxes, Policy | We account for income taxes under the asset and liability method. This approach requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between financial statement carrying amounts and tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment date. We establish a valuation allowance to reduce deferred tax assets if it is "more likely than not" that a portion or all of the asset will not be realized in future tax returns. An uncertain tax position represents treatment of a tax position taken in a filed tax return, or planned to be taken in a future tax return, that has not been reflected in measuring income tax expense for financial reporting purposes. Until these positions are sustained by the taxing authorities, we do not recognize the tax benefits resulting from such positions and report the tax effects for uncertain tax positions in our consolidated balance sheets. |
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| Fair Value of Financial Instruments, Policy | Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Three levels of inputs may be used to measure fair value:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Disclosure of accounting policy for cash and cash equivalents, including the policy for determining which items are treated as cash equivalents. Other information that may be disclosed includes (1) the nature of any restrictions on the entity's use of its cash and cash equivalents, (2) whether the entity's cash and cash equivalents are insured or expose the entity to credit risk, (3) the classification of any negative balance accounts (overdrafts), and (4) the carrying basis of cash equivalents (for example, at cost) and whether the carrying amount of cash equivalents approximates fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for determining the fair value of financial instruments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for goodwill and intangible assets. This accounting policy also may address how an entity assesses and measures impairment of goodwill and intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for investments in debt and equity securities that have readily determinable fair values (marketable securities). At a minimum, the disclosure might address accounting policies for investments classified as trading, available for sale, or held to maturity and may include how the entity determines whether impairments of available for sale or held to maturity investments are other than temporary, how the fair values of the entity's securities are determined, and the entity's accounting treatment for transfers between investment categories. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for assessing and recognizing impairments of its property, plant and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for costs it has incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for revenue recognition. If the entity has different policies for different types of revenue transactions, the policy for each material type of transaction is generally disclosed. If a sales transaction has multiple element arrangements (for example, delivery of multiple products, services or the rights to use assets) the disclosure may indicate the accounting policy for each unit of accounting as well as how units of accounting are determined and valued. The disclosure may encompass important judgment as to appropriateness of principles related to recognition of revenue. The disclosure also may indicate the entity's treatment of any unearned or deferred revenue that arises from the transaction. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for stock option and stock incentive plans. This disclosure may include (1) the types of stock option or incentive plans sponsored by the entity (2) the groups that participate in (or are covered by) each plan (3) significant plan provisions and (4) how stock compensation is measured, and the methodologies and significant assumptions used to determine that measurement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for costs incurred to (1) establish the technological feasibility of a computer software product to be sold, leased, or otherwise marketed; and (2) produce product masters after establishing technological feasibility. This accounting policy also may apply to purchased computer software. This policy also may address the entity's amortization policy for its capitalized computer software costs and how it evaluates such capitalized costs for impairment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for standard warranties including the methodology for measuring the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Summary of Significant Accounting Policies (Tables) |
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Disaggregation of Revenue | The following table provides information about disaggregated revenue based on the preceding categories for the year ended December 31, 2018:
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| Accumulated Other Comprehensive Income (Loss) | Accumulated other comprehensive income, net of tax, consists of the following:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Acquisition (Tables) |
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| Business Combinations [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Purchase Price Allocation | The purchase price was allocated to the assets and liabilities based on fair values as follows:
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- References No definition available.
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- Definition Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Balance Sheet Components (Tables) |
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Balance Sheet Related Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounts Receivable, Net | Accounts receivable consists of the following:
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| Allowance for Doubtful Accounts | The following is a summary of the change in our allowance for doubtful accounts:
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| Inventories | Inventories consist of the following:
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| Property and Equipment, Net | Property and equipment consists of the following:
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| Schedule of Finite-Lived Intangible Assets | Acquired intangible assets resulting from this transaction consist of the following:
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| Schedule of Finite-Lived Intangible Assets, Future Amortization Expense | As of December 31, 2018, future estimated amortization expense is as follows:
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| Accrued Liabilities and Current Portion of Long-Term Liabilities | Accrued liabilities and current portion of long-term liabilities consist of the following:
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| Liability for Warranty Returns | The following is a summary of the change in deferred revenue and our liability for warranty returns:
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- Definition Tabular disclosure of financing receivables (examples of financing receivables include loans, trade accounts receivable and notes receivable) and activity in the allowance for credit losses account. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Tabular disclosure of the components of accrued liabilities. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life, by either major class or business segment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the amount of amortization expense expected to be recorded in succeeding fiscal years for finite-lived intangible assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Convertible Debt (Tables) |
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Debt Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Convertible Debt | As part of the Acquisition, we assumed secured convertible debt which consists of the following:
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| X | ||||||||||
- Definition Tabular disclosure of borrowings which can be exchanged for a specified number of another security at the option of the issuer or the holder. Disclosures include, but are not limited to, principal amount, amortized premium or discount, and amount of liability and equity components. No definition available.
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| X | ||||||||||
- References No definition available.
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Marketable Securities and Fair Value Measurements (Tables) |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value, Liabilities Measured on Recurring and Nonrecurring Basis | As of December 31, 2018 and December 31, 2017, all of our marketable securities are classified as available-for-sale and consist of the following:
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| Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis | The following table presents information about our assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets as of December 31, 2018 and 2017:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of liabilities measured at fair value measured on a recurring or nonrecurring basis. Includes, but is not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Restructuring (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring and Related Activities [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Restructuring Expense by Components | Total restructuring expense included in our statement of operations for the years ended December 31, 2018, 2017 and 2016 is comprised of the following:
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| Schedule of Accrued Restructuring Liabilities | The following is a rollforward of the accrued liabilities related to restructuring for the year ended December 31, 2018:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost. This element may also include a description of any reversal and other adjustment made during the period to the amount of an accrued liability for restructuring activities. This element may be used to encapsulate the roll forward presentations of an entity's restructuring reserve by type of cost and in total, and explanation of changes that occurred in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Interest Expense and Other, Net (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Other Income and Expenses [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Other Operating Cost and Expense, by Component | Interest expense and other, consists of the following:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Income Taxes (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Income (Loss) before Income Tax, Domestic and Foreign | Domestic and foreign pre-tax income (loss) is as follows:
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| Schedule of Components of Income Tax Expense (Benefit) | Income tax expense attributable to operations is comprised of the following:
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| Schedule of Effective Income Tax Rate Reconciliation | The reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows:
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| Schedule of Deferred Tax Assets, Liabilities, and Valuation Allowance | Significant components of our deferred tax assets and liabilities are as follows:
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| Summary of Uncertain Tax Positions and Interest and Penalties | The following is a summary of the change in our liability for uncertain tax positions and interest and penalties:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Commitments and Contingencies (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Commitments and Contingencies Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Future Minimum Payments Disclosure | As of December 31, 2018, future minimum payments under non-cancelable software licenses and operating lease agreements are as follows:
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Earnings Per Share (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Earnings Per Share [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Earnings Per Share, Basic and Diluted | The following schedule reconciles the computation of basic and diluted net loss per share (in thousands, except per share data):
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| Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | The following shares were excluded from the calculation of diluted net loss per share as their effect would have been anti-dilutive (in thousands):
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Shareholders' Equity (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Stockholders' Equity Note [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Stock Option Activity | The following is a summary of stock option activity:
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| Schedue of Shares Authorized under Stock Option Plans, by Exercise Price Range | The following table summarizes information about options outstanding as of December 31, 2018:
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| Schedule of Stock Options Outstanding, Vested and Expected to Vest | Options outstanding that have vested and are expected to vest as of December 31, 2018 are as follows:
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| Schedule of Restricted Stock Units Activity | The following is a summary of restricted stock activity:
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| Stock-Based Compensation, Valuation Assumptions | The fair value of stock-based compensation was determined using the Black-Scholes option pricing model and the following weighted average assumptions:
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| X | ||||||||||
- Definition Tabular disclosure of option exercise prices, by grouped ranges, including the upper and lower limits of the price range, the number of shares under option, weighted average exercise price and remaining contractual option terms. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for outstanding and exercisable options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Segment Information (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Segment Reporting [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Revenue by Geographic Region | Revenue by geographic region, was as follows:
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| Schedule of Revenue from Significant Customers | The percentage of revenue attributable to our distributors, top five end customers, and individual distributors or end customers that represented more than 10% of revenue in at least one of the periods presented, is as follows:
1 End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors. |
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| Schedule of Accounts Receivable Percentages from Significant Customers | Each of the following accounts represented 10% or more of total accounts receivable in at least one of the periods presented:
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| X | ||||||||||
- Definition This element may be used to disclose the percentage of accounts receivable from individual significant customers, those representing 10% or more of total accounts receivable. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. No definition available.
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| X | ||||||||||
- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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Quarterly Financial Data (Unaudited) (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Quarterly Financial Data (Unaudited) |
1 The three months ended December 31, 2018 includes $424 in restructuring expenses. The three months ended December 31, 2017 includes $949 for inventory step-up and backlog amortization, $621 for fair value adjustment on convertible debt conversion feature, and $439 in restructuring expenses. |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Basis of Presentation (Details) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2018
USD ($)
patent
|
Dec. 31, 2017
USD ($)
|
Dec. 31, 2016
USD ($)
|
|
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | |||
| Number of patents held | patent | 361 | ||
| Foreign currency transaction loss, realized | $ | $ (178) | $ (172) | $ (153) |
| X | ||||||||||
- Definition Number of patents held by the Company related to visual display of digital image data. No definition available.
|
| X | ||||||||||
- Definition Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Summary of Significant Accounting Policies (Cash and cash equivalents) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Cash and Cash Equivalents [Abstract] | ||
| Cash equivalents, at carrying value | $ 13,887 | $ 23,402 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Summary of Significant Accounting Policies (Property and equipment) (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Software [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated useful life | Lesser of 3 years or contractual license term |
| Equipment, furniture and fixtures [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated useful life | 2 years |
| Tooling [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated useful life | 2 to 4 years |
| Leasehold improvements [Member] | |
| Property, Plant and Equipment [Line Items] | |
| Estimated useful life | Lesser of lease term or estimated useful life |
| X | ||||||||||
- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Summary of Significant Accounting Policies (Licensed Technology) (Details) |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Accounting Policies [Abstract] | |
| Years of amortization period of licensed technology, lower limit | 2 years |
| Years of amortization period of licensed technology, upper limit | 5 years |
| X | ||||||||||
- Definition Capitalized licensed technology assets are stated at cost and are amortized on a straight-line basis over the term of the license or the estimated life of the assets, which is generally three to five years. No definition available.
|
| X | ||||||||||
- Definition Capitalized licensed technology assets are stated at cost and are amortized on a straight-line basis over the term of the license or the estimated life of the assets, which is generally three to five years. No definition available.
|
| X | ||||||||||
- References No definition available.
|
Summary of Significant Accounting Policies (Revenue Recognition) (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Disaggregation of Revenue [Line Items] | |
| Revenues | $ 76,554 |
| Description of performance obligation timing | Payment terms and conditions for goods and services provided vary by contract; however, payment is generally required within 30 to 60 days of invoicing. |
| IC sales | |
| Disaggregation of Revenue [Line Items] | |
| Revenues | $ 74,247 |
| Engineering services and other | |
| Disaggregation of Revenue [Line Items] | |
| Revenues | $ 2,307 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Summary of Significant Accounting Policies (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Accounting Policies [Abstract] | ||
| Actuarial income on foreign pension obligation | $ 30 | $ 35 |
| Accumulated transition foreign pension obligation | (13) | (15) |
| Accumulated net unrealized holding gain on short term marketable securities | (2) | 0 |
| Accumulated other comprehensive income | $ 15 | $ 20 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before tax of unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale. No definition available.
|
| X | ||||||||||
- Definition Amount, after tax, of accumulated other comprehensive income (loss) for transition asset (obligation) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Summary of Significant Accounting Policies (Recent Accounting Pronouncements) (Details) - Subsequent Event - Accounting Standards Update 2016-02 - Scenario, Forecast |
Jan. 01, 2019
USD ($)
|
|---|---|
| Minimum | |
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
| Operating lease liabilities to be recognized | $ 6,000,000 |
| Right of use assets to be recognized | 5,500,000 |
| Maximum | |
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |
| Operating lease liabilities to be recognized | 7,000,000 |
| Right of use assets to be recognized | $ 6,500,000 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Issued Per Acquired Share No definition available.
|
| X | ||||||||||
- Definition Business Combination, Integration Related Costs, Accelerated Vesting Of Restricted Stock Units No definition available.
|
| X | ||||||||||
- Definition Business Combination, Integration Related Costs, Severance Pay No definition available.
|
| X | ||||||||||
- Definition Business Combination, Integration Related Costs, Severance Pay, Period of Payment No definition available.
|
| X | ||||||||||
- Definition Deferred Taxes, Business Combination, Valuation Allowance No definition available.
|
| X | ||||||||||
- Definition Noncash or Part Noncash Acquisition, Amortization No definition available.
|
| X | ||||||||||
- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. No definition available.
|
| X | ||||||||||
- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of inventory recognized as of the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of a favorable spread to a debt holder between the amount of debt being converted and the value of the securities received upon conversion. This is an embedded conversion feature of convertible debt issued that is in-the-money at the commitment date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. No definition available.
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Acquisition - Schedule of Purchase Price Allocation of Assets and Liabilities (Details) - USD ($) $ in Thousands |
Aug. 02, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|---|
| Assets acquired: | |||
| Goodwill | $ 18,407 | $ 18,407 | |
| ViXS Systems, Inc. | |||
| Business Acquisition [Line Items] | |||
| Purchase price | $ 16,975 | ||
| Assets acquired: | |||
| Cash and cash equivalents | 1,901 | ||
| Accounts receivable | 968 | ||
| Inventories | 3,175 | ||
| Property and equipment | 964 | ||
| Other assets | 1,562 | ||
| Identifiable intangible assets | 6,730 | ||
| Goodwill | 18,407 | ||
| Liabilities assumed: | |||
| Accounts payable | (1,736) | ||
| Accrued liabilities and other current liabilities | (2,832) | ||
| Other noncurrent liabilities | (1,633) | ||
| Less net liabilities assumed | (1,432) | ||
| ViXS Systems, Inc. | Line of Credit | |||
| Liabilities assumed: | |||
| Debt | (4,046) | ||
| ViXS Systems, Inc. | Convertible Debt | |||
| Liabilities assumed: | |||
| Debt | $ (6,485) |
| X | ||||||||||
- Definition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Liabilities And Other Current Liabilities No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of inventory recognized as of the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of long-term debt due after one year or the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of property, plant, and equipment recognized as of the acquisition date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Balance Sheet Components (Accounts Receivable) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|---|
| Accounts Receivable, Net [Abstract] | ||||
| Accounts receivable, gross | $ 7,003 | $ 4,687 | ||
| Allowance for doubtful accounts | (21) | (47) | $ (32) | $ (60) |
| Accounts receivable, net | $ 6,982 | $ 4,640 |
| X | ||||||||||
- Definition For unclassified balance sheet, amounts due from customers or clients for goods or services that have been delivered or sold in the normal course of business. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Allowance for Doubtful Accounts [Roll Forward] | |||
| Balance at beginning of year | $ 47 | $ 32 | $ 60 |
| Additions charged (reductions credited) | (26) | 15 | (28) |
| Balance at end of year | $ 21 | $ 47 | $ 32 |
| X | ||||||||||
- Definition A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the allowance for doubtful accounts. No definition available.
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
Balance Sheet Components (Inventories) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Finished goods | $ 1,577 | $ 1,115 |
| Work-in-process | 1,377 | 1,731 |
| Inventories | $ 2,954 | $ 2,846 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Inventories) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Balance Sheet Related Disclosures [Abstract] | |||
| Inventory write-downs | $ 121 | $ 349 | $ 301 |
| Inventory write off included in restructuring | 285 | ||
| Sale of previously written-down inventory | $ 152 | $ 165 | $ 44 |
| X | ||||||||||
- Definition Write off of inventory related to restructuring. No definition available.
|
| X | ||||||||||
- Definition Sales amount of inventory previously reserved. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Property and Equipment) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||
| Equipment, furniture and fixtures | $ 9,536 | $ 9,040 |
| Tooling | 6,552 | 5,665 |
| Software | 5,444 | 6,112 |
| Leasehold improvements | 1,350 | 2,255 |
| Gross carrying amount | 22,882 | 23,072 |
| Accumulated depreciation and amortization | (16,731) | (17,467) |
| Property and equipment, net | $ 6,151 | $ 5,605 |
| X | ||||||||||
- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before accumulated amortization of capitalized costs for computer software, including but not limited to, acquired and internally developed computer software. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of equipment commonly used in offices and stores that have no permanent connection to the structure of a building or utilities. Examples include, but are not limited to, desks, chairs, tables, and bookcases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of additions or improvements to assets held under a lease arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Property and Equipment) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Balance Sheet Related Disclosures [Abstract] | |||
| Software amortization | $ 1,407 | $ 1,501 | $ 1,755 |
| Depreciation and amortization | $ 2,148 | $ 2,076 | $ 1,705 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of expense for amortization of capitalized computer software costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Other Assets, Net) (Narrative) (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Balance Sheet Related Disclosures [Abstract] | |
| Amortization of acquired intangible assets | $ 1,648 |
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
|
| X | ||||||||||
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Balance Sheet Components (Future Amortization Expense) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Goodwill and Intangible Assets Disclosure [Abstract] | ||
| 2019 | $ 1,505 | |
| 2020 | 1,496 | |
| 2021 | 1,117 | |
| 2022 | 90 | |
| Acquired intangible assets, net | $ 4,208 | $ 5,856 |
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Balance Sheet Components (Goodwill) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Aug. 02, 2017 |
|---|---|---|---|
| Goodwill [Line Items] | |||
| Goodwill | $ 18,407 | $ 18,407 | |
| ViXS Systems, Inc. | |||
| Goodwill [Line Items] | |||
| Goodwill | $ 18,407 |
| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
Balance Sheet Components (Accrued Liabilities and Current Portion of Long-Term Liabilities) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|---|---|
| Balance Sheet Related Disclosures [Abstract] | ||||
| Accrued payroll and related liabilities | $ 4,428 | $ 5,400 | ||
| Accrued interest payable | 3,079 | 2,770 | ||
| Accrued commissions and royalties | 2,791 | 2,610 | ||
| Current portion of accrued liabilities for asset financings | 748 | 1,701 | ||
| Accrued costs related to restructuring | 200 | 352 | ||
| Deferred revenue | 96 | 418 | ||
| Liability for warranty returns | 13 | 17 | $ 28 | $ 49 |
| Other | 3,468 | 3,119 | ||
| Accrued liabilities and current portion of long-term liabilities | $ 14,823 | $ 16,387 |
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for commisions and royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). No definition available.
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Liability for Warranty Returns & Deferred Revenue) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Deferred revenue: | |||
| Balance at beginning of period | $ 418 | $ 0 | $ 0 |
| Revenue recognized | (932) | 0 | 0 |
| Revenue deferred | 610 | 418 | 0 |
| Balance at end of period | 96 | 418 | 0 |
| Liability for warranty returns: | |||
| Balance at beginning of year | 17 | 28 | 49 |
| Provision | 9 | 2 | 6 |
| Charge-offs | (13) | (13) | (27) |
| Balance at end of year | $ 13 | $ 17 | $ 28 |
| X | ||||||||||
- Definition Contract with Customer, Liability [Roll Forward] No definition available.
|
| X | ||||||||||
- Definition Increase (Decrease) In Contract With Customer, Liability No definition available.
|
| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of decrease in the standard product warranty accrual from payments made in cash or in kind to satisfy claims under the terms of the standard product warranty. Excludes extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the standard product warranty accrual. Excludes extended product warranties. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Balance Sheet Components (Short-Term Line of Credit) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Balance Sheet Related Disclosures [Abstract] | ||
| Line of credit facility, maximum borrowing capacity | $ 10,000 | |
| Line of credit facility, component of calculation for maximum borrowing amount under formula advances | $ 1,000 | |
| Line of credit facility, maximum borrowing capacity, limited by eligible A/R | 80.00% | |
| Line of credit facility, maximum borrowing capacity under non-formula advances | $ 10,000 | |
| Line of credit facility, borrowing terms for non-formula advances | 5 days | |
| Line of credit facility, annual interest rate equal to lender's prime rate plus | 0.25% | |
| Line of credit facility, outstanding borrowings | $ 0 | $ 0 |
| X | ||||||||||
- Definition Non-formula advances may be made solely during the last five business days of any fiscal month or quarter. No definition available.
|
| X | ||||||||||
- Definition Maximum amount available to borrow under revolving line of credit is limited by the lesser of $10 million or $1 million plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. No definition available.
|
| X | ||||||||||
- Definition Description of the interest rate for the amounts borrowed under the credit facility, which is the lenders prime rate plus this percentage. No definition available.
|
| X | ||||||||||
- Definition Maximum amount available to borrow under revolving line of credit is limited by the lesser of $10 million or $1 million plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. No definition available.
|
| X | ||||||||||
- Definition Line of credit facility, maximum borrowing capacity under non-formula advances which may be made solely during the last five busines days of any fiscal month or quarter and which must be repaid by the Company on or before the fifth business day after the applicable fiscal month or quarter end. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Convertible Debt - Schedule of Convertible Debt (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Debt Instrument [Line Items] | ||
| Long-term debt | $ 0 | $ 6,069 |
| Convertible Debt | ||
| Debt Instrument [Line Items] | ||
| 10% convertible notes, principal amount | 0 | 4,749 |
| Unamortized debt discount | 0 | (1,030) |
| Conversion feature, at fair value | 0 | 2,350 |
| Long-term debt | $ 0 | $ 6,069 |
| X | ||||||||||
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Issued Per Acquired Share No definition available.
|
| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Marketable Securities and Fair Value Measurements (Short Term Marketable Securities) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Cost | $ 6,071 | $ 0 |
| Unrealized Gain (Loss) | (2) | 0 |
| Fair Value | 6,069 | 0 |
| Corporate debt securities | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Cost | 3,238 | 0 |
| Unrealized Gain (Loss) | (2) | 0 |
| Fair Value | 3,236 | 0 |
| U.S. government treasury bills | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Cost | 1,841 | 0 |
| Unrealized Gain (Loss) | 0 | 0 |
| Fair Value | 1,841 | 0 |
| Commercial paper | ||
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Cost | 992 | 0 |
| Unrealized Gain (Loss) | 0 | 0 |
| Fair Value | $ 992 | $ 0 |
| X | ||||||||||
- Definition Debt Securities Available For Sale Accumulated Gross Unrealized Gain Loss Before Tax No definition available.
|
| X | ||||||||||
- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Convertible Debt, Conversion Feature, Fair Value Disclosures No definition available.
|
| X | ||||||||||
- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. No definition available.
|
| X | ||||||||||
- Definition Fair value portion of borrowing which can be exchanged for a specified number of another security at the option of the issuer or the holder, for example, but not limited to, the entity's common stock. No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Marketable Securities and Fair Value Measurements (Additional Information) (Details) - Convertible debt conversion feature - Recurring |
12 Months Ended |
|---|---|
Dec. 31, 2017 | |
| Fair Value, Assets and Liabilities Measured on Recurring [Line Items] | |
| Fair value assumptions, volatility rate | 60.00% |
| Fair value assumptions, credit spread | 13.13% |
| Fair value assumptions, risk free interest rate | 1.87% |
| X | ||||||||||
- Definition Fair Value Assumptions, Credit Spread No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Risk-free interest rate assumption used in valuing an instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Restructuring (Narrative) (Details) |
1 Months Ended | ||
|---|---|---|---|
Apr. 30, 2018 |
Sep. 30, 2017 |
Apr. 30, 2016 |
|
| April 2018 Plan [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Approximate reduction in workforce from restructuring plan (percent) | 5.00% | ||
| The 2017 Restructuring Plan [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Approximate reduction in workforce from restructuring plan (percent) | 15.00% | ||
| Restructuring Plan [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Approximate reduction in workforce from restructuring plan (percent) | 24.00% | ||
| X | ||||||||||
- Definition The number of positions eliminated during the period as a percentage of total positions eliminated during the period in connection with the restructuring plan(s). No definition available.
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
|
Restructuring (Components of Restructuring Expense) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Restructuring Cost and Reserve [Line Items] | |||
| Tooling and inventory write offs | $ 121 | $ 349 | $ 301 |
| Total restructuring expense | 1,464 | 1,920 | 4,392 |
| Cost of revenue | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Tooling and inventory write offs | 0 | 0 | 1,679 |
| Employee severance and benefits | 0 | 0 | 105 |
| Total restructuring expense | 0 | 0 | 1,784 |
| Operating Expense [Member] | |||
| Restructuring Cost and Reserve [Line Items] | |||
| Facility Closure & Consolidations | 750 | 0 | |
| Employee severance and benefits | 714 | 1,920 | 2,513 |
| Licensed technology and other asset write offs | 0 | 0 | 65 |
| Other | 0 | 0 | 30 |
| Total restructuring expense | $ 1,464 | $ 1,920 | $ 2,608 |
| X | ||||||||||
- Definition Costs to close or consolidate a facility as part of a restructuring plan. No definition available.
|
| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of restructuring charges, remediation cost, and asset impairment loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Payments For Restructuring, Current No definition available.
|
| X | ||||||||||
- Definition Payments For Restructuring, Noncurrent No definition available.
|
| X | ||||||||||
- Definition Restructuring Charges, Current No definition available.
|
| X | ||||||||||
- Definition Restructuring Charges, Noncurrent No definition available.
|
| X | ||||||||||
- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Research and Development (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Research and Development [Abstract] | ||
| Amount receivable as of date of development agreement | $ 4,000 | |
| Payment term after agreement date | 60 days | |
| Amounts payable upon completion of milestones | $ 2,000 | |
| Research and development benefit recognized | $ 4,000 | $ 4,000 |
| X | ||||||||||
- Definition Amounts receivable upon signing of co-development agreement. No definition available.
|
| X | ||||||||||
- Definition Amounts payable upon completion of certain development milestones for development agreements entered into. No definition available.
|
| X | ||||||||||
- Definition Development Agreement, Payment Term After Agreement Date No definition available.
|
| X | ||||||||||
- Definition Offset to research and development expense under development agreements. No definition available.
|
| X | ||||||||||
- References No definition available.
|
Interest Expense and Other, Net (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|||
| Other Income and Expenses [Abstract] | ||||||
| Gain on debt extinguishment | $ 1,272 | $ 29 | $ 0 | |||
| Interest expense 1 | (852) | (878) | (446) | |||
| Interest income | 296 | 141 | 40 | |||
| Discount accretion on convertible debt fair value | (69) | (196) | 0 | |||
| Fair value adjustment on convertible debt conversion option | $ (621) | 0 | (743) | 0 | ||
| Total interest expense and other, net | [1] | $ 647 | $ (1,647) | $ (406) | ||
| ||||||
| X | ||||||||||
- Definition Fair Value Adjustment of Convertible Debt No definition available.
|
| X | ||||||||||
- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of interest income and other income recognized during the period. Included in this element is interest derived from investments in debt securities, cash and cash equivalents, and other investments which reflect the time value of money or transactions in which the payments are for the use or forbearance of money and other income from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business). No definition available.
|
| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Income Taxes (Domestic and Foreign Pre-Tax Income (Loss)) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
[1] | Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
[1] | Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|||
| Income Tax Disclosure [Abstract] | |||||||||||||||
| Domestic | $ (4,551) | $ 903 | $ (11,881) | ||||||||||||
| Foreign | 378 | (4,583) | 1,129 | ||||||||||||
| Loss before income taxes | $ (1,589) | $ 319 | $ (2,581) | $ (322) | $ (3,961) | $ (4,906) | $ 1,933 | $ 3,254 | $ (4,173) | $ (3,680) | $ (10,752) | ||||
| |||||||||||||||
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The portion of earnings or loss from continuing operations before income taxes that is attributable to foreign operations, which is defined as Income or Loss generated from operations located outside the entity's country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Income Taxes (Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|||
| Current: | |||||
| Federal | $ (6) | $ (321) | $ 55 | ||
| State | 10 | 4 | 2 | ||
| Foreign | 506 | 806 | 276 | ||
| Total current | 510 | 489 | 333 | ||
| Deferred: | |||||
| Foreign | (62) | 4 | 22 | ||
| Total deferred | (62) | 4 | 22 | ||
| Income tax expense | [1] | $ 448 | $ 493 | $ 355 | |
| |||||
| X | ||||||||||
- Definition Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Income Taxes (Reconciliation of U.S. Federal Statuatory Rate to our Effective Rate) (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Tax Disclosure [Abstract] | |||
| Federal statutory rate | 21.00% | 34.00% | 34.00% |
| Change in valuation allowance | 57.00% | 887.00% | (14.00%) |
| Expiration of tax attributes | (116.00%) | (127.00%) | (11.00%) |
| Impact of foreign earnings | 11.00% | (2.00%) | 1.00% |
| Research and development credits | 8.00% | 6.00% | 1.00% |
| Stock-based compensation | (4.00%) | (8.00%) | (13.00%) |
| Tax contingencies, net of reversals | 2.00% | 0.00% | 0.00% |
| Tax law change | 0.00% | (789.00%) | 0.00% |
| Permanent items | 0.00% | (8.00%) | 0.00% |
| State income taxes, net of federal tax benefit | 0.00% | 0.00% | 2.00% |
| Other | 10.00% | (6.00%) | (3.00%) |
| Effective income tax rate | (11.00%) | (13.00%) | (3.00%) |
| X | ||||||||||
- Definition Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act of 2017, Percent No definition available.
|
| X | ||||||||||
- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the expiration of tax attributes. No definition available.
|
| X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other nondeductible expenses. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to equity-based compensation costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to research tax credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Income Taxes (Deferred Tax Assets, Liabilities and Valuation Allowance) (Details) - USD ($) $ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Deferred tax assets: | ||
| Net operating loss carryforwards | $ 54,515 | $ 56,461 |
| Research and experimentation credit and deduction carryforwards | 65,868 | 63,796 |
| Foreign tax credit carryforwards | 928 | 2,216 |
| Deferred stock-based compensation | 880 | 802 |
| Depreciation and amortization | 1,420 | 3,068 |
| Reserves and accrued expenses | 1,146 | 511 |
| Other | 319 | 705 |
| Total gross deferred tax assets | 125,076 | 127,559 |
| Deferred tax liabilities: | ||
| Other | (319) | (485) |
| Total gross deferred tax liabilities | (319) | (485) |
| Less valuation allowance | (124,565) | (126,946) |
| Net deferred tax assets | $ 192 | $ 128 |
| X | ||||||||||
- Definition Amount of deferred tax asset attributable to taxable temporary differences from property and equipment. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Income Taxes (Deferred Tax Assets, Liabilities and Valuation Allowance) (Narrative) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Tax Disclosure [Abstract] | ||||
| Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount | $ 485 | |||
| Alternative minimum tax credit carryforward, receivable | $ 343 | |||
| Alternative minimum tax credit carryforward, receivable, current | $ 172 | |||
| Change in net valuation allowance | $ 2,381 | $ 30,867 | $ 1,555 | |
| X | ||||||||||
- Definition Amount of excess tax benefits for which a benefit could not be previously recognized until adoption of ASU 2016-09. No definition available.
|
| X | ||||||||||
- Definition Tax Cuts And Jobs Act Of 2017, Alternative Minimum Tax Credit Carryforward, Receivable No definition available.
|
| X | ||||||||||
- Definition Tax Cuts And Jobs Act Of 2017, Alternative Minimum Tax Credit Carryforward, Receivable, Current No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Income Taxes (Net Operating Loss Carryforwards and Tax Credits) (Narrative) (Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Federal [Member] | |
| Tax Credit Carryforward [Line Items] | |
| Operating loss carryforwards | $ 199,591 |
| Tax credit carryforwards, research | $ 9,099 |
| Ownership change, percent increase in equity ownership by 5% shareholder | 50.00% |
| Minimum percent equity ownership by shareholder for ownership change considerations | 5.00% |
| State [Member] | |
| Tax Credit Carryforward [Line Items] | |
| Operating loss carryforwards | $ 11,384 |
| Tax credit carryforwards, research | 4,360 |
| Foreign [Member] | |
| Tax Credit Carryforward [Line Items] | |
| Operating loss carryforwards | 43,794 |
| Tax credit carryforwards, research | 28,334 |
| General foreign tax credit | $ 818 |
| China, Income tax holiday, reduced statutory rate | 15.00% |
| China, Income tax holiday, expiration date | 2018 |
| Canada Revenue Agency [Member] | Foreign [Member] | |
| Tax Credit Carryforward [Line Items] | |
| Tax credit carryforwards, research | $ 121,683 |
| X | ||||||||||
- Definition The reduced rate of income taxes for a reporting entity is result of the income tax holiday granted by a foreign taxing jurisdiction. No definition available.
|
| X | ||||||||||
- Definition Ownership change is defined as greater than 50% point increase in equity ownership by 5% shareholders in any 3 year period. Ability to utilize federal net operating losses may be limited by Section 382 of the Internal Revenue Code, which imposes an annual limit on the ability of a corporation that undergoes an ownership change to use its net operating loss carryforwards to reduce its tax liability. No definition available.
|
| X | ||||||||||
- Definition Ownership change is defined as greater than 50% point increase in equity ownership by 5% shareholders in any 3 year period. Ability to utilize federal net operating losses may be limited by Section 382 of the Internal Revenue Code, which imposes an annual limit on the ability of a corporation that undergoes an ownership change to use its net operating loss carryforwards to reduce its tax liability. No definition available.
|
| X | ||||||||||
- Definition Amount of research tax credit carryforwards. No definition available.
|
| X | ||||||||||
- Definition The date on which the special tax status will terminate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Definition Unrecognized Tax Benefits, Increase (Decrease) Resulting from Prior Period Tax Positions No definition available.
|
| X | ||||||||||
- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from acquisitions. No definition available.
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Income Taxes (Uncertain Tax Positions) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Income Tax Disclosure [Abstract] | |||
| Liability for uncertain tax positions, noncurrent | $ 1,661 | $ 1,735 | |
| Reduction to deferred tax assets | 925 | 777 | |
| Unrecognized tax benefits, income tax penalties and interest expense | 24 | $ 46 | $ 26 |
| Anticipated decrease of unrecognized tax liability, within twelve months | $ 130 | ||
| X | ||||||||||
- Definition Reduction to deferred tax assets No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount recognized for uncertainty in income taxes classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Commitments and Contingencies (Royalties) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Royalty Expense | $ 742 | $ 1,017 | $ 722 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Commitments and Contingencies (401(k) Plan) (Narrative) (Details) - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Employer contributions to 401(k) plan | $ 0 | $ 0 | $ 0 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. No definition available.
|
Commitments and Contingencies (Future Minimum Payments) (Details) $ in Thousands |
Dec. 31, 2018
USD ($)
|
|---|---|
| Software licenses | |
| Software licenses, 2019 | $ 815 |
| Software licenses, 2020 | 173 |
| Software licenses, 2021 | 0 |
| Software licenses, 2022 | 0 |
| Software licenses, 2023 | 0 |
| Software licenses, 2024 | 0 |
| Software licenses, total | 988 |
| Less: Interest component | (86) |
| Present value of minimum software license payments | 902 |
| Less: Current portion | (748) |
| Long-term portion of obligations | 154 |
| Operating leases | |
| Operating leases, 2019 | 1,856 |
| Operating leases, 2020 | 1,039 |
| Operating leases, 2021 | 708 |
| Operating leases, 2022 | 539 |
| Operating leases, 2023 | 492 |
| Operating leases, 2024 | 378 |
| Operating leases, total | 5,012 |
| Total | |
| Total, 2019 | 2,671 |
| Total, 2020 | 1,212 |
| Total, 2021 | 708 |
| Total, 2022 | 539 |
| Total, 2023 | 492 |
| Total 2024 | 378 |
| Total | $ 6,000 |
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments Due [Abstract] No definition available.
|
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments Due, Current Portion of Present Value No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments maturing in the third fiscal year following the latest fiscal year for software licenses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments maturing in the second fiscal year following the latest fiscal year for software licenses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments Due, Interest Component No definition available.
|
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments Due, Long-term Portion of Present Value No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments maturing in the next fiscal year following the latest fiscal year for software liceneses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments Due, Present Value No definition available.
|
| X | ||||||||||
- Definition Software Licenses, Future Minimum Payments, Due Thereafter No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments for software licenses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments maturing in the fifth fiscal year following the latest fiscal year for software licenses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum payments maturing in the fourth fiscal year following the latest fiscal year for software licenses having an initial or remaining non-cancelable letter-terms in excess of one year. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- Definition Amount of contractual obligation due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Commitments and Contingencies (Leases) (Narrative) (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Commitments and Contingencies Disclosure [Abstract] | |||
| Rent expense, net | $ 2,782 | $ 2,488 | $ 1,770 |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
Commitments and Contingencies (Other Contractual Obligation) (Narrative) (Details) - ViXS Systems, Inc. - Debt associated with agreement with TPC $ in Thousands |
Dec. 31, 2018
USD ($)
|
|---|---|
| Debt Instrument [Line Items] | |
| Contractual obligation, other, current | $ 446 |
| Contractual obligation, other, noncurrent | $ 562 |
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Earnings Per Share (Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
[1] | Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
[1] | Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|||
| Earnings Per Share [Abstract] | |||||||||||||||
| Net loss | $ (1,641) | $ 231 | $ (2,613) | $ (598) | $ (3,552) | $ (4,706) | $ 1,264 | $ 2,821 | $ (4,621) | $ (4,173) | $ (11,107) | ||||
| Weighted average shares outstanding - basic and diluted | 35,959 | 31,507 | 28,276 | ||||||||||||
| Net loss per share - basic and diluted | $ (0.13) | $ (0.13) | $ (0.39) | ||||||||||||
| |||||||||||||||
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. No definition available.
|
| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS). No definition available.
|
Earnings Per Share (Antidilutive Effect on Weighted Average Shares) (Details) - shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Employee equity incentive plans | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive securities excluded from computation of earnings per share, amount | 3,349 | 3,879 | 4,982 |
| Convertible Debt Securities | |||
| Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | |||
| Antidilutive securities excluded from computation of earnings per share, amount | 0 | 371 | 0 |
| X | ||||||||||
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Shareholders' Equity (Shareholders' Equity) (Narrative) (Details) - $ / shares |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Stockholders' Equity Note [Abstract] | ||
| Preferred stock, shares authorized | 50,000,000 | 50,000,000 |
| Preferred stock, par value | $ 0.001 | $ 0.001 |
| Preferred stock, shares issued | 0 | 0 |
| Common stock, shares authorized | 250,000,000 | 250,000,000 |
| Common stock, par value | $ 0.001 | $ 0.001 |
| Common stock, shares reserved for future issuance | 14,383,333 | |
| 2006 Plan, number of shares available for grant | 1,380,482 |
| X | ||||||||||
- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Share-based compensation arrangement by share-based payment award, options, monthly vesting percent vesting beginning after year one No definition available.
|
| X | ||||||||||
- Definition Share-based compensation arrangement by share-based payment award, options, number of months vesting after one year No definition available.
|
| X | ||||||||||
- Definition Share-based compensation arrangement by share-based payment award, options, percent vested on one year anniversary of grant No definition available.
|
| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification Contractual Life No definition available.
|
| X | ||||||||||
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Shareholders' Equity (Stock Options Activity Roll-forward) (Details) |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
$ / shares
shares
| |
| Options Outstanding - Number of Shares | |
| Options outstanding as of December 31, 2017: | shares | 1,305,750 |
| Granted | shares | 21,000 |
| Exercised | shares | (709,375) |
| Canceled and forfeited | shares | (10,103) |
| Expired | shares | (3,917) |
| Options outstanding as of December 31, 2018: | shares | 603,355 |
| Options Outstanding - Weighted Average Exercise Price | |
| Options outstanding as of December 31, 2017: | $ / shares | $ 2.11 |
| Granted | $ / shares | 4.91 |
| Exercised | $ / shares | 1.78 |
| Canceled and forfeited | $ / shares | 4.19 |
| Expired | $ / shares | 6.16 |
| Options outstanding as of December 31, 2018: | $ / shares | $ 2.52 |
| X | ||||||||||
- Definition Weighted average exercise price at which stock options awarded expired in the current period. No definition available.
|
| X | ||||||||||
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. No definition available.
|
| X | ||||||||||
- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. No definition available.
|
| X | ||||||||||
- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. No definition available.
|
| X | ||||||||||
- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
Shareholders' Equity (Options Vested or are Expected to Vest as of December 31, 2018) (Details) $ / shares in Units, $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
$ / shares
shares
| |
| Stockholders' Equity Note [Abstract] | |
| Vested, number of shares | shares | 426,856 |
| Expected to vest, number of shares | shares | 166,349 |
| Total, number of shares | shares | 593,205 |
| Vested, weighted average exercise price | $ / shares | $ 2.33 |
| Expected to vest, weighted average exercise price | $ / shares | 2.97 |
| Total, weighted average exercise price | $ / shares | $ 2.51 |
| Vested, weighted average remaining contractual term | 2 years 5 months 26 days |
| Expected to vest, weighted average remaining contractual term | 3 years 6 months 21 days |
| Total, weighted average remaining contractual term | 2 years 8 months 44 days |
| Vested, aggregate intrinsic value | $ | $ 307 |
| Expected to vest, aggregate intrinsic value | $ | 48 |
| Total, aggregate intrinsic value | $ | $ 355 |
| X | ||||||||||
- Definition The number of unvested stock options outstanding as of the balance sheet date that are expected to vest in the future and can become converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of expected to vest options outstanding. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price for the number of unvested stock options outstanding as of the balance sheet date that are expected to vest in the future and can become converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition The weighted average remaining contractuatl term for the number of unvested stock options outstanding as of the balance sheet date that are expected to vest in the future and can become converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition The number of shares into which fully vested stock options outstanding as of the balance-sheet date can be currently converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise prices of fully vested options outstanding. No definition available.
|
| X | ||||||||||
- Definition The weighted average exercise price for the number of shares into which fully vested stock options outstanding as of the balance-sheet date can be currently converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition The weighted average remaining contractual term for the number of shares into which fully vested stock options outstanding as of the balance-sheet date can be currently converted under the option plan. No definition available.
|
| X | ||||||||||
- Definition Amount by which current fair value of underlying stock exceeds exercise price of fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Shareholders' Equity (Restricted Stock) (Narrative) (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Stockholders' Equity Note [Abstract] | |||
| Restricted stock grants, number of shares | 1,346,440 | 1,514,527 | 1,572,519 |
| Restricted stock grants, weighted average grant date fair value | $ 4.24 | $ 4.87 | $ 2.21 |
| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- References No definition available.
|
Shareholders' Equity (Unvested Restricted Stock Units Activity Roll-Forward) (Details) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Unvested Restricted Stock Units - Number of Shares | |||
| Unvested at December 31, 2017: | 2,302,602 | ||
| Granted | 1,346,440 | ||
| Vested | (959,683) | ||
| Canceled | (125,105) | ||
| Unvested at December 31, 2018: | 2,564,254 | 2,302,602 | |
| Expected to vest after December 31, 2018 | 2,364,479 | ||
| Unvested Restricted Stock Units - Weighted Average Grant Date Fair Value | |||
| Unvested at December 31, 2017: | $ 3.94 | ||
| Granted | 4.24 | $ 4.87 | $ 2.21 |
| Vested | 3.76 | ||
| Canceled | 3.96 | ||
| Unvested at December 31, 2018: | 4.16 | $ 3.94 | |
| Expected to vest after December 31, 2018 | $ 4.14 | ||
| X | ||||||||||
- Definition The number of unvested restricted stock units outstanding as of the balance sheet date that are expected to vest in the future and issued under the restricted stock plan. No definition available.
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| X | ||||||||||
- Definition The weighted average exercise price of the unvested restricted stock units outstanding as of the balance sheet date that are expected to vest in the future and issued under the restricted stock plan. No definition available.
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| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
|
| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Shareholders' Equity (Employee Stock Purchase Plans) (Narrative) (Details) - 2010 Employee Stock Purchase Plan [Member] - USD ($) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
May 18, 2010 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Employee Stock Purchase Plan, Activity in Period [Line Items] | ||||
| Employee Stock Purchase Plan, offering period | 18 months | |||
| Employee Stock Purchase Plan, purchase period | 6 months | |||
| Employee Stock Purchase Plan, maximum number of shares per employee | 3,000 | |||
| Employee Stock Purchase Plan, maximum annual purchase amount per employee | $ 25 | |||
| Employee Stock Purchase Plan, purchase price of common stock, percent | 85.00% | |||
| Employee Stock Purchase Plan, number of shares authorized | 1,300,000 | |||
| Employee Stock Purchase Plans, shares issued | 181,960 | 153,242 | 141,633 | |
| Employee Stock Purchase Plans, proceeds from shares issued | $ 420 | $ 270 | $ 252 | |
| X | ||||||||||
- Definition Employee Stock Purchase Plan, Activity in Period [Line Items] No definition available.
|
| X | ||||||||||
- Definition Employee Stock Purchase Plans, proceeds from issuance of common stock No definition available.
|
| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Maximum Annual Purchase Amount Per Employee No definition available.
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| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Offering Period No definition available.
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| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Purchase Period No definition available.
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| X | ||||||||||
- Definition The highest quantity of shares an employee can purchase under the plan per period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Purchase price of common stock expressed as a percentage of its fair value. No definition available.
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| X | ||||||||||
- Definition Number of shares issued during the period as a result of an employee stock purchase plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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Shareholders' Equity (Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions) (Details) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Stock Option Plans: | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] | |||
| Risk free interest rate | 2.684% | 1.848% | 1.37% |
| Expected dividend yield | 0.00% | 0.00% | 0.00% |
| Expected term (in years) | 5 years | 5 years | 5 years |
| Volatility | 74.00% | 75.00% | 74.00% |
| Employee Stock Purchase Plan: | |||
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] | |||
| Risk free interest rate | 1.97% | 1.09% | 0.20% |
| Expected dividend yield | 0.00% | 0.00% | 0.00% |
| Expected term (in years) | 1 year 23 days | 1 year 25 days | 1 year 1 month 12 days |
| Volatility | 51.00% | 65.00% | 84.00% |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification Contractual Life No definition available.
|
| X | ||||||||||
- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Segment Information (Geographic Information) (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
[1] | Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
[1] | Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
||||||||
| Revenue, net | $ 20,539 | $ 21,472 | $ 19,251 | $ 15,292 | $ 18,448 | $ 18,758 | $ 20,721 | $ 22,710 | $ 76,554 | [2] | $ 80,637 | [2] | $ 53,390 | [2] | ||||||
| Japan | ||||||||||||||||||||
| Revenue, net | 67,330 | 66,041 | 44,186 | |||||||||||||||||
| China | ||||||||||||||||||||
| Revenue, net | 5,079 | 2,117 | 1,616 | |||||||||||||||||
| U.S. | ||||||||||||||||||||
| Revenue, net | 1,815 | 1,697 | 84 | |||||||||||||||||
| Taiwan | ||||||||||||||||||||
| Revenue, net | 1,619 | 6,841 | 5,095 | |||||||||||||||||
| Korea | ||||||||||||||||||||
| Revenue, net | 427 | 987 | 963 | |||||||||||||||||
| Europe | ||||||||||||||||||||
| Revenue, net | 284 | 2,166 | 634 | |||||||||||||||||
| Other | ||||||||||||||||||||
| Revenue, net | $ 0 | $ 788 | $ 812 | |||||||||||||||||
| ||||||||||||||||||||
| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Segment Information (Schedule of Revenue by Major Customer) (Details) - Revenue |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
||||
| All distributors | ||||||
| Revenue, Major Customer [Line Items] | ||||||
| Percentage of revenue | 44.00% | 47.00% | 43.00% | |||
| Distributor A | ||||||
| Revenue, Major Customer [Line Items] | ||||||
| Percentage of revenue | 34.00% | 27.00% | 24.00% | |||
| Top five end customers | ||||||
| Revenue, Major Customer [Line Items] | ||||||
| Percentage of revenue | [1] | 82.00% | 79.00% | 82.00% | ||
| End customer A | ||||||
| Revenue, Major Customer [Line Items] | ||||||
| Percentage of revenue | [1] | 50.00% | 47.00% | 53.00% | ||
| End customer B | ||||||
| Revenue, Major Customer [Line Items] | ||||||
| Percentage of revenue | [1] | 10.00% | 9.00% | 8.00% | ||
| ||||||
| X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Segment Information (Accounts Receivable by Major Customer) (Details) - Accounts receivable |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Account X | ||
| Segment Reporting Information [Line Items] | ||
| Percentage of accounts receivable | 54.00% | 29.00% |
| Account Y | ||
| Segment Reporting Information [Line Items] | ||
| Percentage of accounts receivable | 34.00% | 38.00% |
| X | ||||||||||
- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
||||||||||
| Quarterly Financial Information Disclosure [Abstract] | ||||||||||||||||||||
| Revenue, net | $ 20,539 | [1] | $ 21,472 | $ 19,251 | $ 15,292 | $ 18,448 | [1] | $ 18,758 | $ 20,721 | $ 22,710 | $ 76,554 | [2] | $ 80,637 | [2] | $ 53,390 | [2] | ||||
| Gross profit | 10,905 | [1] | 11,237 | 9,534 | 7,802 | 9,160 | [1] | 9,011 | 11,201 | 12,392 | 39,478 | 41,764 | 25,068 | |||||||
| Income (loss) from operations | (1,507) | [1] | 431 | (2,450) | (1,294) | (3,042) | [1] | (4,378) | 2,040 | 3,347 | (4,820) | (2,033) | (10,346) | |||||||
| Income (loss) before income taxes | (1,589) | [1] | 319 | (2,581) | (322) | (3,961) | [1] | (4,906) | 1,933 | 3,254 | (4,173) | (3,680) | (10,752) | |||||||
| Net income (loss) | $ (1,641) | [1] | $ 231 | $ (2,613) | $ (598) | $ (3,552) | [1] | $ (4,706) | $ 1,264 | $ 2,821 | (4,621) | (4,173) | (11,107) | |||||||
| Net income (loss) per share: | ||||||||||||||||||||
| Basic (in dollars per share) | $ (0.04) | [1] | $ 0.01 | $ (0.07) | $ (0.02) | $ (0.10) | [1] | $ (0.14) | $ 0.04 | $ 0.10 | ||||||||||
| Diluted (in dollars per share) | $ (0.04) | [1] | $ 0.01 | $ (0.07) | $ (0.02) | $ (0.10) | [1] | $ (0.14) | $ 0.04 | $ 0.09 | ||||||||||
| Restructuring charges | $ 424 | $ 439 | 1,464 | 1,920 | 2,608 | |||||||||||||||
| Inventory step-up and backlog amortization | 949 | |||||||||||||||||||
| Fair value adjustment on convertible debt conversion option | $ 621 | $ 0 | $ 743 | $ 0 | ||||||||||||||||
| ||||||||||||||||||||
| X | ||||||||||
- Definition Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory And Amortization Of Intangible Assets No definition available.
|
| X | ||||||||||
- Definition Fair Value Adjustment of Convertible Debt No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|