0001040161-22-000017 | 10-K | XBRL Viewer

Print Document View Excel Document

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 61,587	$ 31,257
Short-term marketable securities	0	250
Accounts receivable, net	8,708	4,672
Inventories	1,469	2,445
Prepaid expenses and other current assets	2,732	1,010
Total current assets	74,496	39,634
Property and equipment, net	5,656	5,103
Operating lease right-of-use assets	4,789	6,606
Other assets, net	3,162	1,081
Acquired intangible assets, net	90	1,207
Goodwill	18,407	18,407
Total assets	106,600	72,038
Current liabilities:
Accounts payable	2,747	995
Accrued liabilities and current portion of long-term liabilities	13,563	9,452
Current portion of income taxes payable	128	147
Total current liabilities	16,438	10,594
Long-term liabilities, net of current portion	519	1,007
Deposit liability	12,716	0
Operating lease liabilities, net of current portion	2,853	5,088
Income taxes payable, net of current portion	2,948	2,479
Total liabilities	35,474	19,168
Commitments and contingencies (Note 11)
Redeemable non-controlling interest	30,905	0
Shareholders' equity:
Preferred stock, $0.001 par value, 50,000,000 shares authorized, none issued	0	0
Common stock, $0.001 par value; 250,000,000 shares authorized, 53,367,136 and 51,078,942 shares issued and outstanding as of December 31, 2021 and 2020, respectively.	475,644	467,957
Accumulated other comprehensive income (loss)	(468)	47
Accumulated deficit	(434,955)	(415,134)
Total shareholders' equity	40,221	52,870
Total liabilities, redeemable non-controlling interest and shareholders' equity	$ 106,600	$ 72,038

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	53,367,136	51,078,942
Common stock, shares outstanding (in shares)	53,367,136	51,078,942

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue, net	$ 55,102	$ 40,855
Cost of revenue	27,409	20,670
Gross profit	27,693	20,185
Operating expenses:
Research and development	27,250	25,040
Selling, general and administrative	20,445	19,840
Restructuring	0	2,041
Total operating expenses	47,695	46,921
Loss from operations	(20,002)	(26,736)
Interest income and other, net	457	9
Gain on loan extinguishment	0	796
Total other income, net	457	805
Loss before income taxes	(19,545)	(25,931)
Loss before income taxes	(19,545)	(25,931)
Provision (benefit) for income taxes	(133)	598
Net loss	(19,412)	(26,529)
Less: Net income attributable to redeemable non-controlling interest	(409)	0
Net loss attributable to Pixelworks, Inc.	$ (19,821)	$ (26,529)
Net loss attributable to Pixelworks, Inc. per share - basic (in usd per share)	$ (0.38)	$ (0.65)
Net loss attributable to Pixelworks, Inc. per share - diluted (in usd per share)	$ (0.38)	$ (0.65)
Weighted average shares outstanding - basic (in shares)	52,509,000	40,712,000
Weighted average shares outstanding - diluted (in shares)	52,509,000	40,712,000

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring	$ 0	$ 2,041
Amortization of acquired intangible assets	1,118
Cost of revenue
Amortization of acquired intangible assets	899	1,192
Stock-based compensation	43	432
Restructuring	0	173
Amortization of acquired intangible assets	899
Research and development
Stock-based compensation	2,363	2,943
Selling, general and administrative
Stock-based compensation	3,678	4,296
Amortization of acquired intangible assets	$ 219	$ 304

Consolidated Statement of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (19,412)	$ (26,529)
Other comprehensive income (loss):
Foreign currency translation adjustment	(520)	0
Foreign pension adjustment	6	48
Tax effect of foreign pension adjustment	(1)	(10)
Unrealized loss on available-for-sale securities	0	(3)
Total comprehensive loss attributable to Pixelworks, Inc.	(19,927)	(26,494)
Less: Net income attributable to redeemable non-controlling interest	(409)	0
Total comprehensive loss attributable to Pixelworks, Inc.	$ (20,336)	$ (26,494)

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net loss	$ (19,412)	$ (26,529)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	6,084	7,853
Depreciation and amortization	3,648	3,737
Amortization of acquired intangible assets	1,118	1,496
Deferred income tax expense (benefit)	(768)	26
Reversal of uncertain tax positions	(2)	(88)
Gain on loan extinguishment	0	(796)
Accretion on short-term marketable securities	0	(4)
Gain on sale of marketable securities	0	(4)
Other	10	9
Changes in operating assets and liabilities:
Accounts receivable, net	(4,036)	6,243
Inventories	976	2,956
Prepaid expenses and other current and long-term assets, net	(46)	3,295
Accounts payable	1,282	166
Accrued current and long-term liabilities	1,537	(2,361)
Income taxes payable	452	290
Net cash used in operating activities	(9,157)	(3,711)
Cash flows from investing activities:
Purchases of property and equipment	(3,475)	(2,637)
Proceeds from sales and maturities of marketable securities	250	8,229
Purchases of available-for-sale marketable securities	0	(1,500)
Purchases of licensed technology	0	(152)
Net cash provided by (used in) investing activities	(3,225)	3,940
Cash flows from financing activities:
Net proceeds from issuance of equity interest to certain entities owned by employees	29,976	0
Proceeds from Issuance of Equity Interest to Entities Owned by Employees	12,329	0
Proceeds from issuances of common stock under employee equity incentive plans	1,282	600
Payments on asset financings	(1,195)	(1,007)
Net proceeds from "at the market" equity offering	320	4,429
Net proceeds from equity offering	0	12,743
Net proceeds from private placement investment	0	6,210
Proceeds from Paycheck Protection Program loan	0	796
Net cash provided by financing activities	42,712	23,771
Net increase in cash and cash equivalents	30,330	24,000
Cash and cash equivalents, beginning of period	31,257	7,257
Cash and cash equivalents, end of period	61,587	31,257
Supplemental disclosure of cash flow information:
Cash paid for income taxes, net of refunds received	376	397
Cash paid during the year for interest	162	217
Non-cash investing and financing activities:
Acquisitions of property and equipment and other assets under extended payment terms	1,229	1,495
Gain on loan extinguishment	$ 0	$ (796)

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Equity Offering	Private Placement	At the Market Offering	Common Stock	Common Stock Equity Offering	Common Stock Private Placement	Common Stock At the Market Offering	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance, shares at Dec. 31, 2019					38,434,488
Beginning balance at Dec. 31, 2019	$ 47,529				$ 436,122				$ 12	$ (388,605)
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Stock issued under employee equity incentive plans, shares					2,061,988
Stock issued under employee equity incentive plans	600				$ 600
Equity offering, shares						5,635,000	3,200,000	1,747,466
Equity offering		$ 12,743	$ 6,210	$ 4,429		$ 12,743	$ 6,210	$ 4,429
Stock-based compensation expense	7,853				7,853
Unrealized loss on available-for-sale securities	(3)								(3)
Foreign currency translation adjustment	0
Net loss attributable to Pixelworks Inc.	(26,529)									(26,529)
Foreign pension adjustment, net of tax	38								38
Ending balance at Dec. 31, 2020	52,870				$ 467,957				47	(415,134)
Ending balance, shares at Dec. 31, 2020					51,078,942
Increase (Decrease) in Shareholders' Equity [Roll Forward]
Stock issued under employee equity incentive plans, shares					2,227,176
Stock issued under employee equity incentive plans	1,282				$ 1,282
Equity offering, shares								61,018
Equity offering				$ 321				$ 321
Stock-based compensation expense	6,084				6,084
Foreign currency translation adjustment	(520)								(520)
Net loss attributable to Pixelworks Inc.	(19,821)									(19,821)
Foreign pension adjustment, net of tax	5								5
Ending balance at Dec. 31, 2021	$ 40,221				$ 475,644				$ (468)	$ (434,955)
Ending balance, shares at Dec. 31, 2021					53,367,136

Consolidated Statements of Shareholders' Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Statement of Stockholders' Equity [Abstract]
Foreign pension adjustment, tax	$ 1	$ 10

Basis of Presentation	12 Months Ended
Basis of Presentation	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	BASIS OF PRESENTATION Nature of Business Pixelworks is a leading provider of high-performance and power-efficient visual processing solutions that bridge the gap between video content formats and rapidly advancing display capabilities. We develop and market semiconductor and software solutions that enable consistently high-quality, authentic viewing experiences in a wide variety of applications from cinema to smartphones. Our primary target markets include Mobile (smartphone, gaming and tablet), Home Entertainment (TV, personal video recorder ("PVR"), over-the-air ("OTA") and projector), Content (creation, remastering and delivery), and Business & Education (projector). As of December 31, 2021, we had an intellectual property portfolio of 335 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") ("the Acquisition"). During the third quarter of 2021, we engaged in a strategic plan to re-align our mobile, projector, and video delivery businesses to improve their focus on the Asia-centered customers and employee stakeholders of those businesses. The global center of the mobile, projector, and video delivery businesses continues to be in Asia, and the steps we have taken to date and going forward are intended to improve our ability to access capital, customers, and talent. We have operated our primary R&D center in Asia for over 15 years and feel that the time is right to take advantage of that existing footprint and develop our subsidiary, Pixelworks Semiconductor Technology (Shanghai) Co., Ltd. (or "PWSH") as a full profit-and-loss center underneath Pixelworks, Inc. for the mobile, projector, and video delivery businesses. Most of these steps have been completed as of the end of 2021. This plan will further enable PWSH to seek qualification to file an application for an initial public offering on the Shanghai Stock Exchange’s Science and Technology Innovation Board, known as the STAR Market (the “Listing”). We believe that the Listing will have many benefits, including improved access to new capital markets and the funding of its growth worldwide. We presently intend to qualify PWSH to apply for the Listing so that the Listing is consummated in 2023. The process of going public on the STAR Market includes several periods of review and, therefore, is a lengthy process. There is no guarantee that PWSH will be approved for a Listing at any point in the future. Our consolidated financial statements include the accounts of Pixelworks and its 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 (gains) and losses were $(258) and $419 for the years ended December 31, 2021 and 2020, respectively. Use of Estimates The preparation of 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.

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2021

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 as of December 31, 2021 and 2020 consisted of U.S. denominated money market funds, totaled $15,254 and $23,832 as of December 31, 2021 and 2020, 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, 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:


			Software			Lesser of 3 years or contractual license term
			Equipment, furniture and fixtures			2 years
			Tooling			2 to 4 years
			Leasehold improvements			Lesser of lease term or estimated useful life

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, 2021.

Goodwill

Goodwill is not amortized, rather it is 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 2021 and concluded that goodwill was not impaired.

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.

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 December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2019-12, Simplifying the Accounting for Income Taxes ("ASU 2019-12"). ASU 2019-12 removes certain exceptions to the general principles in Accounting Standards Codification ("ASC") 740 and also clarifies and amends existing guidance to provide for more consistent application. ASU 2019-12 became effective for us in the first quarter of fiscal 2021, and early adoption is permitted. The adoption of ASU 2019-12 did not have a material impact on our financial position, results of operations and cash flows.

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 amendment also precludes 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 became effective for us on January 1, 2020. The adoption of ASU 2018-18 did not have a material impact on our financial position, results of operations and cash flows.

Balance Sheet Components

12 Months Ended

Dec. 31, 2021

Balance Sheet Related Disclosures [Abstract]

Balance Sheet Components

BALANCE SHEET COMPONENTS

Accounts Receivable, Net

Accounts receivable consists of the following:


	December 31,
	2021		2020
Accounts receivable, gross	$	8,744	$	4,713
Allowance for doubtful accounts	(36)		(41)
Accounts receivable, net	$	8,708	$	4,672

The following is a summary of the change in our allowance for doubtful accounts:


	Year Ended December 31,
	2021		2020
Balance at beginning of year	$	41	$	23
Additions charged (reductions credited)	(5)		18

Balance at end of year	$	36	$	41

Inventories

Inventories consist of the following:


	December 31,
	2021		2020
Finished goods	$	461	$	1,775
Work-in-process	1,008		670
Inventories	$	1,469	$	2,445

We recorded inventory write-downs of $488 and $95 for the years ended December 31, 2021 and 2020, respectively. The inventory write-downs were for lower of cost or net realizable value and excess and obsolescence exposure. The inventory write-downs were offset by sales of previously written-down inventory of $9 and $29 for the years ended December 31, 2021 and 2020, 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:


	December 31,
	2021		2020
Equipment, furniture and fixtures	$	9,463	$	8,889
Tooling	5,749		6,298
Software	5,230		5,711
Leasehold improvements	1,375		1,393
	21,817		22,291
Accumulated depreciation and amortization	(16,161)		(17,188)
Property and equipment, net	$	5,656	$	5,103

Software amortization was $1,214 and $1,174 for the years ended December 31, 2021 and 2020, respectively. Depreciation and amortization expense for equipment, furniture, fixtures, tooling and leasehold improvements was $2,281 and $2,227 for the years ended December 31, 2021 and 2020, respectively.

Other Assets, Net

Other assets consist primarily of deposits, deferred tax assets and licensed technology. Amortization of licensed technology was $153 and $336 for the years ended December 31, 2021 and 2020, respectively.

Acquired Intangible Assets, Net

In connection with the Acquisition, we recorded certain identifiable intangible assets. Acquired intangible assets resulting from this transaction consist of the following:


	December 31,
	2021		2020
Developed technology	$	5,050	$	5,050
Customer relationships	1,270		1,270
Backlog and tradename	410		410
	6,730		6,730
Less: accumulated amortization	(6,640)		(5,523)
Acquired intangible assets, net	$	90	$	1,207

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 and tradename was fully amortized as of December 31, 2019.

Amortization expense for intangible assets was $1,118 for the year ended December 31, 2021, with $899 included in cost of revenue and $219 included in selling, general and administrative on the consolidated statements of operations. As of December 31, 2021, future estimated amortization expense is as follows:


Year ending December 31, 2022			$	90

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, 2021.

Goodwill

Goodwill resulted from the Acquisition, whereby we recorded goodwill of $18,407. 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:


	December 31,
	2021		2020
Accrued payroll and related liabilities	$	3,490	$	2,867
Operating lease liability, current	2,439		2,039
Deferred research and development reimbursement	1,838		—
Current portion of accrued liabilities for asset financings	1,077		786
Accrued interest payable	361		429
Accrued commissions and royalties	259		474
Deferred revenue	50		179

Accrued costs related to restructuring	—		630
Other	4,049		2,048
Accrued liabilities and current portion of long-term liabilities	$	13,563	$	9,452

The following is a summary of the change in deferred revenue:


	Year Ended December 31,
	2021		2020
Deferred revenue:
Balance at beginning of period	$	179	$	146
Revenue recognized	(1,127)		(902)
Revenue deferred	998		935
Balance at end of period	$	50	$	179

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 over time, including as recently as December 14, 2020 (as amended, the "Revolving Loan Agreement"). The Revolving Loan Agreement provided 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) $2,500 plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. The Revolving Line had a maturity date of March 26, 2021. In addition, the Revolving Loan Agreement provided for non-formula advances of up to $10,000 which could be made solely during the last five business days of any fiscal month or quarter and which were required to be repaid by the Company on or before the fifth business day after the applicable fiscal month or quarter end.

The Revolving Loan Agreement, as amended, contained customary affirmative and negative covenants as well as customary events of default. The occurrence of an event of default could have resulted in the acceleration of our obligations under the Revolving Loan Agreement, as amended, and an increase to the applicable interest rate, and would have permitted the Bank to exercise remedies with respect to its security interest. The Revolving Line had a maturity date of March 26, 2021. We did not renew the Revolving Loan Agreement upon its maturity.

As of December 31, 2020, we had no outstanding borrowings on the Revolving Line.

Paycheck Protection Program Loan

On April 25, 2020, we entered into a loan with Silicon Valley Bank as the lender in an aggregate principal amount of $796 (the “Loan”) pursuant to the Paycheck Protection Program (the “PPP”) under the Coronavirus Aid, Relief, and Economic Security Act (the “CARES Act”).

The Loan was evidenced by a promissory note (the “Note”) dated April 25, 2020, and matured 2 years from the disbursement date. The Note bore interest at a rate of 1.000% per annum, with the first six months of interest deferred. Principal and interest

were payable monthly commencing 6 months after the disbursement date and could be prepaid by the Company at any time prior to maturity with no prepayment penalties. The Note contained customary events of default relating to, among other things, payment defaults or breaches of the terms of the Note. Upon the occurrence of an event of default, the Lender could require immediate repayment of all amounts outstanding under the Note.

Under the terms of the CARES Act, PPP loan recipients can apply for and be granted forgiveness for all or a portion of loans granted under the PPP. The Loan is subject to forgiveness to the extent proceeds are used for payroll costs, including payments required to continue group health care benefits, and certain rent, utility, and mortgage interest expenses (collectively, “Qualifying Expenses”), pursuant to the terms and limitations of the PPP. We used the Loan amount for Qualifying Expenses. During the fourth quarter of 2020, we applied for and received full forgiveness and recorded a gain of $796 within other income in our consolidated statements of operations.

Marketable Securities and Fair Value Measurements

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value Measurements

MARKETABLE SECURITIES AND FAIR VALUE MEASUREMENTS

Marketable Securities

We had no marketable securities as of December 31, 2021. As of December 31, 2020, all of our marketable securities were classified as available-for-sale, had contractual maturities of one year or less and consisted of the following:


	Cost		Unrealized Gain (Loss)		Fair Value
Short-term marketable securities:
As of December 31, 2020:


Corporate debt securities	$	253	$	(3)	$	250
	$	253	$	(3)	$	250

Unrealized holding gains and losses are recorded in accumulated other comprehensive income, a component of shareholders’ equity, in the 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:

Level 1:Valuations based on quoted prices in active markets for identical assets and liabilities.

Level 2:Valuations based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

Level 3:Valuations based on unobservable inputs in which there is little or no market data available, which require the reporting entity to develop its own assumptions.

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, 2021 and 2020:


	Level 1		Level 2		Level 3		Total
As of December 31, 2021:
Assets:
Cash equivalents:
Money market funds	$	15,254	$	—	$	—	$	15,254







As of December 31, 2020:
Assets:
Cash equivalents:
Money market funds	$	23,832	$	—	$	—	23,832


Short-term marketable securities:


Corporate debt securities	—		250		—		250

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.

- 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.

+ References + Details

Restructuring

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Restructuring

RESTRUCTURINGS

In August 2020, we executed a restructuring plan to make the operation of the Company more efficient (the "August 2020 Plan"). The August 2020 Plan included an approximately 14% reduction in workforce, primarily in the areas of operations, research and development, sales and marketing.

In January 2020, we executed a restructuring plan to make the operation of the Company more efficient (the "January 2020 Plan"). The January 2020 Plan included an approximately4% reduction in workforce, primarily in the areas of research and development and sales.

Total restructuring expense included in our statement of operations for the years ended December 31, 2021 and 2020 is comprised of the following:


	Year Ended December 31,
	2021		2020
Cost of revenue — restructuring:

Employee severance and benefits	$	—	$	173
	—		173

Operating expenses — restructuring:
Employee severance and benefits	$	—	$	2,041



	—		2,041
Total restructuring expense	$	—	$	2,214

The following is a rollforward of the accrued liabilities related to restructuring for the year ended December 31, 2021:


	Balance as of December 31, 2020		Expensed		Payments		Balance as of December 31, 2021

Employee severance and benefits	$	630	$	—	$	(630)	$	—
Accrued costs related to restructuring	$	630	$	—	$	(630)	$	—

Leases

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Leases

LEASES

We determine if an arrangement is a lease at inception. Operating leases are included in operating lease right-of-use (“ROU”) assets, other current liabilities, and operating lease liabilities in our consolidated balance sheets.

ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. As most of our leases do not provide an implicit rate, we use our incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Operating lease ROU assets also exclude lease incentives received. For purposes of calculating operating lease liabilities, lease terms may be deemed to include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option.

We have operating leases for office buildings and one vehicle. Our leases have remaining lease terms of 1 year to 6 years. Supplemental information related to lease expense and valuation of the ROU assets and lease liabilities was as follows:


	Year Ended			Year Ended
	December 31, 2021			December 31, 2020
Operating lease cost	$	2,622		$	2,721
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	2,809			2,816
Leased assets obtained in exchange for new operating lease liabilities	629			3,535
Weighted average remaining lease term (in years)	2.95			3.76
Weighted average discount rate	4.96		%	4.99		%

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:


Operating Lease Payments
Years ending December 31:
2022	$	2,652
2023	1,376
2024	877
2025	364
2026	364
Thereafter	91


Total operating lease payments	5,724
Less imputed interest	(432)
Total operating lease liabilities	$	5,292

As of December 31, 2021, the Company had no operating lease liabilities that had not commenced.

Revenue

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Revenue

REVENUE

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.

License Revenue - On occasion, we derive revenue from the license of our internally developed intellectual property ("IP"). Additionally, for certain IP license agreements, royalties are collected as customers sell their own products that incorporate our IP. IP licensing agreements that we enter into generally provide licensees the right to incorporate our IP components in their products with terms and conditions that vary by licensee. Fees under these agreements generally include license fees or royalty fees relating to our IP and support service fees, resulting in two performance obligations. We evaluate each performance obligation, which generally results in the transfer of control at a point in time for the license fee and over time for support services. Royalties are recognized as revenue is earned, generally when the customer sells its products that incorporate our IP.

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 years ended December 31, 2021 and 2020:


	Year ended December 31,
	2021		2020
IC sales	$	50,807	$	39,205
Engineering services, license and other	4,295		1,650
Total revenues	$	55,102	$	40,855

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 3. 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.

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.The aggregate amount of the transaction price allocated to unsatisfied performance obligations with an original expected duration of greater than one year is $30,

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

+ Details

Interest Income (Expense) and Other, Net

12 Months Ended

Dec. 31, 2021

Other Income and Expenses [Abstract]

Interest Expense and Other, Net

INTEREST INCOME AND OTHER, NET

Interest income and other, consists of the following:


	Year Ended December 31,
	2021		2020
Other income	$	246	$	161
Interest income	211		87
Interest expense	—		(239)



Total interest income and other, net	$	457	$	9

Research and Development	12 Months Ended
Research and Development	Dec. 31, 2021
Research and Development [Abstract]
Research and Development	RESEARCH AND DEVELOPMENT During the third quarter of 2021, we entered into a best-efforts co-development agreement with a customer to defray a portion of the research and development expenses we expect to incur in connection with our development of an integrated circuit product. We expect our development costs to exceed 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, $5,800 was payable by the customer within 60 days of the date of the agreement and three additional payments of $2,200, $1,300 and $1,300 are each payable upon completion of certain development milestones. As amounts become due and payable, they are offset against research and development expense on a pro rata basis. During the year ended December 31, 2021, we recognized an offset to research and development expense of $3,962.

Income Taxes

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

Current and Deferred Income Tax Expense

Domestic and foreign pre-tax loss is as follows:


	Year Ended December 31,
	2021		2020
Domestic	$	(10,967)	$	(25,590)
Foreign	(8,578)		(341)
Domestic and foreign pre-tax loss	$	(19,545)	$	(25,931)

Income tax expense attributable to operations is comprised of the following:


	Year Ended December 31,
	2021		2020
Current:
Federal	$	(27)	$	(74)
State	19		3
Foreign	643		643
Total current	635		572
Deferred:


Foreign	(768)		26
Total deferred	(768)		26
Income tax expense (benefit)	$	(133)	$	598

The reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows:


	Year Ended December 31,
	2021		2020
Federal statutory rate	21	%	21	%
Corporate restructuring	(38)		—
Change in valuation allowance	24		—
Expiration of tax attributes	(6)		(14)
Tax contingencies, net of reversals	(5)		—
Impact of foreign earnings	3		(7)
Permanent items	4		(1)
Research and development credits	2		1
Stock-based compensation	(1)		(2)


Other	(3)		—
Effective income tax rate	1	%	(2)	%

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:


	December 31,
	2021		2020
Deferred tax assets:
Research and experimentation credit and deduction carryforwards	$	62,771	$	65,772
Net operating loss carryforwards	45,985		50,917
Depreciation and amortization	5,664		2,282
Deferred stock-based compensation	994		1,158
Reserves and accrued expenses	992		145
Foreign tax credit carryforwards	208		275


Other	1,451		2,074
Total gross deferred tax assets	118,065		122,623
Deferred tax liabilities:

Other	(812)		(1,526)
Total gross deferred tax liabilities	(812)		(1,526)
Less valuation allowance	(116,372)		(120,981)
Net deferred tax assets	$	881	$	116

We continue to record a full valuation allowance against our U.S. net deferred tax assets as of December 31, 2021 and 2020, as it is not more likely than not that we will realize a benefit from these assets in a future period. In the third quarter of 2021, we recorded a valuation allowance against our net deferred tax assets in China in conjunction with the restructuring of our intercompany agreements and intellectual property. In the fourth quarter of 2021, we recognized $558 of our Canadian net deferred tax assets as we are more likely than not to realize a benefit from these assets in a future period. We have not provided a valuation allowance against our other 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 $4,609 for the year ended December 31, 2021 and decreased $24 for the year ended December 31, 2020.

As of December 31, 2021, we had federal, state and foreign net operating loss carryforwards of $166,448, $6,756 and $39,450 respectively, which will begin to expire in 2022 with $31,705 of our federal net operating loss carryforward lasting indefinitely. As of December 31, 2021, we had available federal, state and foreign research and experimentation tax credit carryforwards of $7,823, $4,993, and $24,252 respectively. The federal and state tax credits will begin expiring in 2022 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 $120,906. We have a general foreign tax credit of $118 which will begin to expire in 2022.

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 are not indefinitely reinvested in the earnings of our subsidiaries in Canada, Japan and Taiwan and have accrued tax on the future repatriation of cash for jurisdictions where withholding taxes would apply. We are no longer indefinitely reinvested in our China subsidiary and have reversed our previous accrual of $620 as a result of changes to our operating plan and implementation of our China intellectual property strategy.

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, 2021, the amount of our uncertain tax positions was a liability of $2,493 and a reduction to deferred tax assets of $1,254. As of December 31, 2020, the amount of our uncertain tax positions was a liability of $1,610 and a reduction to deferred tax assets of $1,189.

The following is a summary of the change in our liability for uncertain tax positions and interest and penalties:


	2021		2020
Uncertain tax positions:
Balance at beginning of year	$	2,711	$	2,569
Accrual for positions taken in a prior year	825		24
Accrual for positions taken in current year	121		192
Reversals due to lapse of statute of limitations	(11)		(74)

Balance at end of year	$	3,646	$	2,711
Interest and penalties:
Balance at beginning of year	$	88	$	85
Accrual for positions taken in prior year	16		18
Accrual for positions taken in current year	—		—
Reversals due to lapse of statute of limitations	(3)		(15)

Balance at end of year	$	101	$	88

During the years ended December 31, 2021 and 2020 we recognized $16 and $18, 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 $97 within the next twelve months due to the expiration of statutes of limitation in federal, state and foreign jurisdictions.

We are no longer subject to U.S. federal, state, and foreign examinations for years before 2018, 2017 and 2014, 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, 2021.

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 270
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Commitments and Contingencies

12 Months Ended

Dec. 31, 2021

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 $225 and $242 for the years ended December 31, 2021 and 2020, 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 contributions of $55 and $48 to the 401(k) plan during the years ended December 31, 2021 and 2020, respectively.

Software licenses

We acquire rights to use certain software engineer design tools under software licenses.

As of December 31, 2021, future minimum payments under non-cancelable software licenses are as follows:


Year Ending December 31,	Software licenses
2022	$	1,133
2023	365




	1,498
Less: Interest component	(65)
Present value of minimum software license payments	1,433
Less: Current portion	(1,077)
Long-term portion of obligations	$	356

Other Contractual Obligation

As part of the 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. $504 and $499 are included in accrued liabilities and current portion of long-term liabilities in our consolidated balance sheet as of December 31, 2021 and 2020, respectively. $57 and $268 are included in long-term liabilities, net of current portion in our consolidated balance sheets as of December 31, 2021 and 2020, respectively.

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, 2021, 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.

Earnings Per Share

12 Months Ended

Dec. 31, 2021

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):


	Year Ended December 31,
	2021		2020
Net loss	$	(19,412)	$	(26,529)
Less: Net income attributable to redeemable non-controlling interest	(409)		—
Less: Net income attributable to certain entities owned by employees	(198)		—
Net loss attributable to Pixelworks Inc. - for purposes of earnings per share calculation	$	(20,019)	$	(26,529)
Weighted average shares outstanding - basic and diluted	52,509		40,712



Net loss attributable to Pixelworks, Inc. per share - basic and diluted	$	(0.38)	$	(0.65)

Basic and diluted earnings (loss) per share was computed by dividing the net income (loss) by the weighted-average number of common shares outstanding for the period. The numerator adjustments include an allocation of PWSH income to the redeemable non-controlling interests and the employee owned entities. The equity interest associated with the employee-owned entities are considered participating securities at PWSH and will be allocated income, however, they are not required to fund losses, and therefore, no allocations of losses will be made to the employee owned entities in periods of loss at PWSH. 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.

The following shares were excluded from the calculation of diluted net loss per share as their effect would have been anti-dilutive (in thousands):


	Year Ended December 31,
	2021	2020
Employee equity incentive plans	3,832	4,148

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.

Shareholders' Equity

12 Months Ended

Dec. 31, 2021

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, 2021 and 2020.

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.

Equity Offering

On December 14, 2020, we completed the sale of 4,900,000 shares of common stock in an underwritten registered offering. On December 16, 2020, an additional 735,000 shares were issued pursuant to the 30-day over-allotment option exercised by the underwriter. With the over-allotment shares, a total of 5,635,000 shares of common stock were sold in the offering at a price to the public of $2.45 per share. Net proceeds to the Company, after deducting underwriting discounts, commissions, and other expenses, were approximately $12,743.

Private Placement Investment

On December 7, 2020, we completed a private placement of 724,288 shares of common stock to a certain accredited investor at a purchase price of $2.071 per share. On December 15, 2020, we completed a private placement of 2,475,712 shares of common stock to a certain accredited investor at a purchase price of $2.071. Net proceeds to the Company, after deducting commissions and other expenses, were approximately $6,210.

At the Market Offering

On June 5, 2020, we entered into a sales agreement (the "Sales Agreement") with Cowen and Company, LLC ("Cowen"), pursuant to which we may issue and sell shares of the Company's common stock, par value $0.001 per share, having an aggregate offering price of up to $25,000, from time to time, through an "at the market" equity offering program under which Cowen will act as sales agent. Under the Sales Agreement, Cowen may sell the shares by methods deemed to be an "at the market offering" as defined in Rule 415(a)(4) promulgated under the Securities Act of 1933, as amended, including sales made by means of ordinary brokers’ transactions on the Nasdaq Global Market or on any other existing trading market for the common stock or otherwise at market prices prevailing at the time of sale, in block transactions, or as otherwise directed by the Company. We pay Cowen a commission equal to three percent (3.0%) of the gross sales proceeds of any common stock sold through Cowen under the Sales Agreement. The Sales Agreement may be terminated by us upon prior notice to Cowen or by Cowen upon prior notice to us, or at any time under certain circumstances, including but not limited to the occurrence of a material adverse change in the Company. We are not obligated to sell any shares under the Sales Agreement.

During the year ended December 31, 2020, we sold an aggregate of 1,747,466 shares of our common stock under this at the market offering, resulting in aggregate net proceeds to us of approximately $4,429.

During the year ended December 31, 2021, we sold an aggregate of 61,018 shares of our common stock under this at the market offering, resulting in aggregate net proceeds to us of approximately $321.

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 and restated on certain occasions, most recently on May 10, 2021 when our shareholders approved an increase to the total number of authorized shares to 22,683,333 shares. As of December 31, 2021, 2,105,497 shares were available for grant under the 2006 Plan.

Stock Options

The contractual life of newly issued stock option awards is 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:


	Number of shares	Weighted average exercise price
Options outstanding as of December 31, 2020:	719,067	$	2.53
Granted	—	—
Exercised	(352,375)	2.47
Canceled and forfeited	(500)	4.56
Expired	(11,583)	4.51
Options outstanding as of December 31, 2021:	354,609	$	2.52

The following table summarizes information about options outstanding as of December 31, 2021:


	Options Outstanding				Options Exercisable
Range of exercise prices	Number outstanding as of December 31, 2021	Weighted average remaining contractual life	Weighted average exercise price		Number exercisable as of December 31, 2021	Weighted average exercise price
$2.00 - $2.00	237,500	4.79	$	2.00	159,500	$	2.00
2.46 - 2.46	109,109	1.67	3.40		97,521	3.33
2.79- 6.05	8,000	2.08	6.05		7,667	6.05

$2.00 - $6.05	354,609	3.77	$	2.52	264,688	$	2.61

During the years ended December 31, 2021 and 2020 the total intrinsic value of options exercised was $445 and $28, 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, 2021, options outstanding had a total intrinsic value of $684.

Options outstanding that have vested and are expected to vest as of December 31, 2021 are as follows:


	Number of shares	Weighted average exercise price		Weighted average remaining contractual term	Aggregate intrinsic value
Vested	264,688	$	2.61	3.48	$	491
Expected to vest	88,517	2.26		4.64	190
Total	353,205	$	2.52	3.77	$	681

Restricted Stock

The 2006 Plan provides for the issuance of restricted stock, including restricted stock units. During the years ended December 31, 2021 and 2020 we granted 2,123,844 and 2,137,317 shares, respectively, of restricted stock with a weighted average grant date fair value of $3.70 and $3.42 per share, respectively.

The following is a summary of restricted stock activity:


	Number of shares	Weighted average grant date fair value
Unvested at December 31, 2020:	3,176,605	$	3.68
Granted	2,123,844	3.70
Vested	(1,715,624)	3.67
Canceled	(268,790)	3.84
Unvested at December 31, 2021:	3,316,035	$	3.69
Expected to vest after December 31, 2021	3,090,192	$	3.68

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. On May 15, 2020 the ESPP was amended when our shareholders approved an increase to the total number of shares of common stock reserved for issuance to 3,300,000. During the years ended December 31, 2021 and 2020, we issued 159,177 and 202,019 shares, respectively for proceeds of $411 and $529, 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:


	Year Ended December 31,
	2021		2020
Stock Option Plans:
Risk free interest rate	0	%	2.00	%
Expected dividend yield	0	%	0	%
Expected term (in years)	0		3.75
Volatility	0	%	64	%
Employee Stock Purchase Plan:
Risk free interest rate	0.12	%	0.79	%
Expected dividend yield	0	%	0	%
Expected term (in years)	1.17		1.05
Volatility	75	%	65	%

There were no options granted during the year ended December 31, 2021. The weighted average fair value of options granted during the year ended December 31, 2020 was $0.93. 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. The contractual life of newly issued stock options is six years, and 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, 2021, unrecognized stock-based compensation expense is $5,560, which is expected to be recognized as stock-based compensation expense over a weighted average period of 1.12 years.

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 16
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(1))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Segment Information

12 Months Ended

Dec. 31, 2021

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. The majority of our assets are located in the United States and China.

Geographic Information

Revenue by geographic region, was as follows:


	Year Ended December 31,
	2021		2020
Japan	$	27,001	$	26,554
China	23,977		8,935
Taiwan	2,142		1,668
U.S.	1,624		3,057
Europe	242		333
Korea	116		308

	$	55,102	$	40,855

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:


	Year Ended December 31,
	2021		2020
Distributors:
All distributors	56	%	49	%
Distributor A	27	%	7	%
Distributor B	13	%	23	%
End Customers: 1
Top five end customers	76	%	58	%
End customer A	35	%	40	%
End customer B	22	%	5	%

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:


	December 31,
	2021		2020
Account X	41	%	39	%
Account Y	27	%	20	%
Account Z	15	%	7	%

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Data (Unaudited)

QUARTERLY FINANCIAL DATA (UNAUDITED)


	Quarterly Period Ended
	March 31		June 30		September 30		December 31
2021
Revenue, net	$	9,270	$	14,050	$	15,196	$	16,586
Gross profit	3,725		7,110		7,985		8,873
Loss from operations	(7,914)		(4,457)		(3,904)		(3,727)
Loss before income taxes	(7,858)		(4,275)		(3,850)		(3,562)
Net loss attributable to Pixelworks Inc.	(8,075)		(4,382)		(4,073)		(3,291)

Net loss attributable to Pixelworks Inc. per share - basic and diluted	(0.16)		(0.08)		(0.08)		(0.06)

2020
Revenue, net	$	13,774	$	9,253	$	8,190	$	9,638
Gross profit	6,775		5,049		3,976		4,385
Loss from operations	(5,277)		(6,421)		(8,137)		(6,901)
Loss before income taxes	(5,223)		(6,445)		(8,165)		(6,098)
Net loss attributable to Pixelworks Inc.	(5,399)		(6,552)		(8,139)		(6,439)

Net loss attributable to Pixelworks Inc. per share - basic and diluted	(0.14)		(0.17)		(0.20)		(0.15)

Redeemable Non-Controlling Interest and Equity Interest of Pwsh Sold to Employees

12 Months Ended

Dec. 31, 2021

Noncontrolling Interest [Abstract]

Redeemable Non-Controlling Interest and Equity Interest of Pwsh Sold to Employees

REDEEMABLE NON-CONTROLLING INTEREST AND EQUITY INTEREST OF PWSH SOLD TO EMPLOYEES

During the third quarter of 2021, Pixelworks, Inc. and our subsidiary, PWSH, entered into a Capital Increase Agreement with certain private equity and strategic investors based in China (collectively, the “Investors”) and certain entities which collectively are owned by approximately 75% of the employees of PWSH and its subsidiaries (collectively, the “ESOP”). The ESOP entities do not qualify as Employee Share Ownership Programs under IRC 4975(e)(7), but function as a qualified ESOP and hold an equity ownership in trust for employees.

The Investors invested approximately $30,844 in exchange for a redeemable non-controlling equity interest of 10.45% of PWSH. The Investors will have a liquidation preference in PWSH, a right to co-sell their interest in PWSH along with the Company on the same terms and conditions as the Company, a right to participate on a pro rata basis in any future financing rounds of PWSH, and the Company’s agreement while it remains an owner of PWSH and for two (2) years thereafter to not compete with the business of PWSH, nor solicit or otherwise cause any of PWSH’s core employees or customers to end their relationship with PWSH. These rights all expire upon initial public offering on the STAR Market. Each Investor has the right to require PWSH to redeem the entire equity interest held by such Investor, at the original purchase price paid plus 3% annual interest, if PWSH does not consummate an initial public offering on the STAR Market on or before June 30, 2024. Based on this contingency, the initial carrying amount of the redeemable non-controlling interests was recorded at fair value on the date of issuance of PWSH equity interests, net of issuance costs and presented in temporary equity on the condensed consolidated balance sheets. The Company has elected to accrete changes in the redemption value of the redeemable non-controlling interests from the issuance date through the earliest redemption date of June 30, 2024 using the interest method. Because the redeemable non-controlling interest is denominated in RMB, it will be revalued to USD at the end of each reporting period, with the changes in carrying value attributable to foreign currency being reflected within accumulated other comprehensive loss on the condensed consolidated balance sheets.

The ESOP entities invested approximately $12,329 in exchange for a redeemable non-controlling equity interest representing 5.95% of PWSH, which includes a discount of 30% from the valuation paid by the Investors. Each of the ESOP entities has the right to require PWSH to redeem the entire equity interest held by such ESOP entities at the original purchase price paid plus 5% annual interest, if PWSH does not achieve its Listing on or before December 31, 2024. Because the ESOP entities are owned by employees of PWSH and its subsidiaries and employees are required to render service until either the initial public offering on the STAR Market or repurchase date, the equity interest owned by the ESOP entities will be accounted for under ASC 718 (Compensation - Stock Compensation). The initial carrying amount of the investment has been recorded as a long-term deposit liability on the condensed consolidated balance sheets as the initial public offering cannot be considered probable at this time. We will recognize the periodic interest component of the award as compensation expense and accrete the long-term deposit liability to its redemption value as of December 31, 2024. Because the long-term deposit liability is denominated in RMB and is considered a monetary liability as defined in ASC 255 (Changing Prices), it will be revalued to USD at the end of each reporting period, with the changes in carrying value recorded as foreign currency gain/loss in our condensed consolidated statements of operations.

The process of going public on the STAR Market includes several periods of review and is therefore a lengthy process. There can be no assurances that PWSH will complete the Listing by June 30, 2024, or at all. In the event Pixelworks, Inc. is required to redeem the entire equity interest held by the Investors or the ESOP entities, we may be required to seek additional capital in order to redeem their PWSH shares and there would be no assurances that such capital would be available on terms acceptable to us, if at all. Any redemptions could have a material adverse effect on our business, financial condition and results of operations. The listing of PWSH on China's STAR Market will not change our status as a U.S. public company.

The components of the change in redeemable non-controlling interests for the year ended December 31, 2021 are presented in the following table (in thousands):


Carrying Value of Redeemable NCI as of January 1, 2021	$	—
Increase in non-controlling interest due to issuance of stock	30,844
Closing costs incurred	(868)
Net income attributable to redeemable non-controlling interest	409
Effect of foreign currency translation attributable to redeemable non-controlling interest	520
Carrying Value of Redeemable NCI as of December 31, 2021	$	30,905

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Use of Estimates, Policy

The preparation of 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.

Cash and Cash Equivalents, Policy

Marketable Securities, Policy

Accounts Receivable, Policy

Inventories, Policy

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:


			Software			Lesser of 3 years or contractual license term
			Equipment, furniture and fixtures			2 years
			Tooling			2 to 4 years
			Leasehold improvements			Lesser of lease term or estimated useful life

The cost of property and equipment repairs and maintenance is expensed as incurred.

Licensed Technology, Policy

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.

Goodwill, Policy

Warranty Program, Policy

Share-Based Compensation, Policy

Research and Development, Policy

Income Taxes, Policy

Fair Value of Financial Instruments, Policy

Level 1:Valuations based on quoted prices in active markets for identical assets and liabilities.

Level 2:Valuations based on inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly.

Level 3:Valuations based on unobservable inputs in which there is little or no market data available, which require the reporting entity to develop its own assumptions.

Revenue, Policy

Balance Sheet Components (Tables)

12 Months Ended

Dec. 31, 2021

Balance Sheet Related Disclosures [Abstract]

Accounts Receivable, Net

Accounts receivable consists of the following:


	December 31,
	2021		2020
Accounts receivable, gross	$	8,744	$	4,713
Allowance for doubtful accounts	(36)		(41)
Accounts receivable, net	$	8,708	$	4,672

Allowance for Doubtful Accounts

The following is a summary of the change in our allowance for doubtful accounts:


	Year Ended December 31,
	2021		2020
Balance at beginning of year	$	41	$	23
Additions charged (reductions credited)	(5)		18

Balance at end of year	$	36	$	41

Inventories

Inventories consist of the following:


	December 31,
	2021		2020
Finished goods	$	461	$	1,775
Work-in-process	1,008		670
Inventories	$	1,469	$	2,445

Property and Equipment, Net

Property and equipment consists of the following:


	December 31,
	2021		2020
Equipment, furniture and fixtures	$	9,463	$	8,889
Tooling	5,749		6,298
Software	5,230		5,711
Leasehold improvements	1,375		1,393
	21,817		22,291
Accumulated depreciation and amortization	(16,161)		(17,188)
Property and equipment, net	$	5,656	$	5,103

Schedule of Finite-Lived Intangible Assets

Acquired intangible assets resulting from this transaction consist of the following:


	December 31,
	2021		2020
Developed technology	$	5,050	$	5,050
Customer relationships	1,270		1,270
Backlog and tradename	410		410
	6,730		6,730
Less: accumulated amortization	(6,640)		(5,523)
Acquired intangible assets, net	$	90	$	1,207

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

As of December 31, 2021, future estimated amortization expense is as follows:


Year ending December 31, 2022			$	90

Accrued Liabilities and Current Portion of Long-Term Liabilities

Accrued liabilities and current portion of long-term liabilities consist of the following:


	December 31,
	2021		2020
Accrued payroll and related liabilities	$	3,490	$	2,867
Operating lease liability, current	2,439		2,039
Deferred research and development reimbursement	1,838		—
Current portion of accrued liabilities for asset financings	1,077		786
Accrued interest payable	361		429
Accrued commissions and royalties	259		474
Deferred revenue	50		179

Accrued costs related to restructuring	—		630
Other	4,049		2,048
Accrued liabilities and current portion of long-term liabilities	$	13,563	$	9,452

Liability for Deferred Revenue

The following is a summary of the change in deferred revenue:


	Year Ended December 31,
	2021		2020
Deferred revenue:
Balance at beginning of period	$	179	$	146
Revenue recognized	(1,127)		(902)
Revenue deferred	998		935
Balance at end of period	$	50	$	179

Marketable Securities and Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair Value, Assets Measured on Recurring and Nonrecurring Basis


	Cost		Unrealized Gain (Loss)		Fair Value
Short-term marketable securities:
As of December 31, 2020:


Corporate debt securities	$	253	$	(3)	$	250
	$	253	$	(3)	$	250

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, 2021 and 2020:


	Level 1		Level 2		Level 3		Total
As of December 31, 2021:
Assets:
Cash equivalents:
Money market funds	$	15,254	$	—	$	—	$	15,254







As of December 31, 2020:
Assets:
Cash equivalents:
Money market funds	$	23,832	$	—	$	—	23,832


Short-term marketable securities:


Corporate debt securities	—		250		—		250

Restructuring (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Restructuring Expense by Components

Total restructuring expense included in our statement of operations for the years ended December 31, 2021 and 2020 is comprised of the following:


	Year Ended December 31,
	2021		2020
Cost of revenue — restructuring:

Employee severance and benefits	$	—	$	173
	—		173

Operating expenses — restructuring:
Employee severance and benefits	$	—	$	2,041



	—		2,041
Total restructuring expense	$	—	$	2,214

Schedule of Accrued Restructuring Liabilities

The following is a rollforward of the accrued liabilities related to restructuring for the year ended December 31, 2021:


	Balance as of December 31, 2020		Expensed		Payments		Balance as of December 31, 2021

Employee severance and benefits	$	630	$	—	$	(630)	$	—
Accrued costs related to restructuring	$	630	$	—	$	(630)	$	—

Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Supplemental Information Related to Leases


	Year Ended			Year Ended
	December 31, 2021			December 31, 2020
Operating lease cost	$	2,622		$	2,721
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	2,809			2,816
Leased assets obtained in exchange for new operating lease liabilities	629			3,535
Weighted average remaining lease term (in years)	2.95			3.76
Weighted average discount rate	4.96		%	4.99		%

Future Minimum Payments Under Non-cancellable Leases

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:


Operating Lease Payments
Years ending December 31:
2022	$	2,652
2023	1,376
2024	877
2025	364
2026	364
Thereafter	91


Total operating lease payments	5,724
Less imputed interest	(432)
Total operating lease liabilities	$	5,292

As of December 31, 2021, future minimum payments under non-cancelable software licenses are as follows:


Year Ending December 31,	Software licenses
2022	$	1,133
2023	365




	1,498
Less: Interest component	(65)
Present value of minimum software license payments	1,433
Less: Current portion	(1,077)
Long-term portion of obligations	$	356

Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table provides information about disaggregated revenue based on the preceding categories for the years ended December 31, 2021 and 2020:


	Year ended December 31,
	2021		2020
IC sales	$	50,807	$	39,205
Engineering services, license and other	4,295		1,650
Total revenues	$	55,102	$	40,855

Interest Income (Expense) and Other, Net (Tables)

12 Months Ended

Dec. 31, 2021

Other Income and Expenses [Abstract]

Schedule of Other Operating Cost and Expense, by Component

Interest income and other, consists of the following:


	Year Ended December 31,
	2021		2020
Other income	$	246	$	161
Interest income	211		87
Interest expense	—		(239)



Total interest income and other, net	$	457	$	9

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) before Income Tax, Domestic and Foreign

Domestic and foreign pre-tax loss is as follows:


	Year Ended December 31,
	2021		2020
Domestic	$	(10,967)	$	(25,590)
Foreign	(8,578)		(341)
Domestic and foreign pre-tax loss	$	(19,545)	$	(25,931)

Schedule of Components of Income Tax Expense (Benefit)

Income tax expense attributable to operations is comprised of the following:


	Year Ended December 31,
	2021		2020
Current:
Federal	$	(27)	$	(74)
State	19		3
Foreign	643		643
Total current	635		572
Deferred:


Foreign	(768)		26
Total deferred	(768)		26
Income tax expense (benefit)	$	(133)	$	598

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:


	Year Ended December 31,
	2021		2020
Federal statutory rate	21	%	21	%
Corporate restructuring	(38)		—
Change in valuation allowance	24		—
Expiration of tax attributes	(6)		(14)
Tax contingencies, net of reversals	(5)		—
Impact of foreign earnings	3		(7)
Permanent items	4		(1)
Research and development credits	2		1
Stock-based compensation	(1)		(2)


Other	(3)		—
Effective income tax rate	1	%	(2)	%

Schedule of Deferred Tax Assets, Liabilities, and Valuation Allowance

Significant components of our deferred tax assets and liabilities are as follows:


	December 31,
	2021		2020
Deferred tax assets:
Research and experimentation credit and deduction carryforwards	$	62,771	$	65,772
Net operating loss carryforwards	45,985		50,917
Depreciation and amortization	5,664		2,282
Deferred stock-based compensation	994		1,158
Reserves and accrued expenses	992		145
Foreign tax credit carryforwards	208		275


Other	1,451		2,074
Total gross deferred tax assets	118,065		122,623
Deferred tax liabilities:

Other	(812)		(1,526)
Total gross deferred tax liabilities	(812)		(1,526)
Less valuation allowance	(116,372)		(120,981)
Net deferred tax assets	$	881	$	116

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:


	2021		2020
Uncertain tax positions:
Balance at beginning of year	$	2,711	$	2,569
Accrual for positions taken in a prior year	825		24
Accrual for positions taken in current year	121		192
Reversals due to lapse of statute of limitations	(11)		(74)

Balance at end of year	$	3,646	$	2,711
Interest and penalties:
Balance at beginning of year	$	88	$	85
Accrual for positions taken in prior year	16		18
Accrual for positions taken in current year	—		—
Reversals due to lapse of statute of limitations	(3)		(15)

Balance at end of year	$	101	$	88

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Payments Disclosure

Future minimum lease payments under non-cancellable leases as of December 31, 2021 were as follows:


Operating Lease Payments
Years ending December 31:
2022	$	2,652
2023	1,376
2024	877
2025	364
2026	364
Thereafter	91


Total operating lease payments	5,724
Less imputed interest	(432)
Total operating lease liabilities	$	5,292

As of December 31, 2021, future minimum payments under non-cancelable software licenses are as follows:


Year Ending December 31,	Software licenses
2022	$	1,133
2023	365




	1,498
Less: Interest component	(65)
Present value of minimum software license payments	1,433
Less: Current portion	(1,077)
Long-term portion of obligations	$	356

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2021

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):


	Year Ended December 31,
	2021		2020
Net loss	$	(19,412)	$	(26,529)
Less: Net income attributable to redeemable non-controlling interest	(409)		—
Less: Net income attributable to certain entities owned by employees	(198)		—
Net loss attributable to Pixelworks Inc. - for purposes of earnings per share calculation	$	(20,019)	$	(26,529)
Weighted average shares outstanding - basic and diluted	52,509		40,712



Net loss attributable to Pixelworks, Inc. per share - basic and diluted	$	(0.38)	$	(0.65)

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):


	Year Ended December 31,
	2021	2020
Employee equity incentive plans	3,832	4,148

Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Note [Abstract]

Schedule of Stock Option Activity

The following is a summary of stock option activity:


	Number of shares	Weighted average exercise price
Options outstanding as of December 31, 2020:	719,067	$	2.53
Granted	—	—
Exercised	(352,375)	2.47
Canceled and forfeited	(500)	4.56
Expired	(11,583)	4.51
Options outstanding as of December 31, 2021:	354,609	$	2.52

Schedue of Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes information about options outstanding as of December 31, 2021:


	Options Outstanding				Options Exercisable
Range of exercise prices	Number outstanding as of December 31, 2021	Weighted average remaining contractual life	Weighted average exercise price		Number exercisable as of December 31, 2021	Weighted average exercise price
$2.00 - $2.00	237,500	4.79	$	2.00	159,500	$	2.00
2.46 - 2.46	109,109	1.67	3.40		97,521	3.33
2.79- 6.05	8,000	2.08	6.05		7,667	6.05

$2.00 - $6.05	354,609	3.77	$	2.52	264,688	$	2.61

Schedule of Stock Options Outstanding, Vested and Expected to Vest

Options outstanding that have vested and are expected to vest as of December 31, 2021 are as follows:


	Number of shares	Weighted average exercise price		Weighted average remaining contractual term	Aggregate intrinsic value
Vested	264,688	$	2.61	3.48	$	491
Expected to vest	88,517	2.26		4.64	190
Total	353,205	$	2.52	3.77	$	681

Schedule of Restricted Stock Units Activity

The following is a summary of restricted stock activity:


	Number of shares	Weighted average grant date fair value
Unvested at December 31, 2020:	3,176,605	$	3.68
Granted	2,123,844	3.70
Vested	(1,715,624)	3.67
Canceled	(268,790)	3.84
Unvested at December 31, 2021:	3,316,035	$	3.69
Expected to vest after December 31, 2021	3,090,192	$	3.68

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:


	Year Ended December 31,
	2021		2020
Stock Option Plans:
Risk free interest rate	0	%	2.00	%
Expected dividend yield	0	%	0	%
Expected term (in years)	0		3.75
Volatility	0	%	64	%
Employee Stock Purchase Plan:
Risk free interest rate	0.12	%	0.79	%
Expected dividend yield	0	%	0	%
Expected term (in years)	1.17		1.05
Volatility	75	%	65	%

Segment Information (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Schedule of Revenue by Geographic Region

Revenue by geographic region, was as follows:


	Year Ended December 31,
	2021		2020
Japan	$	27,001	$	26,554
China	23,977		8,935
Taiwan	2,142		1,668
U.S.	1,624		3,057
Europe	242		333
Korea	116		308

	$	55,102	$	40,855

Schedule of Revenue from Significant Customers


	Year Ended December 31,
	2021		2020
Distributors:
All distributors	56	%	49	%
Distributor A	27	%	7	%
Distributor B	13	%	23	%
End Customers: 1
Top five end customers	76	%	58	%
End customer A	35	%	40	%
End customer B	22	%	5	%

1 End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors.

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:


	December 31,
	2021		2020
Account X	41	%	39	%
Account Y	27	%	20	%
Account Z	15	%	7	%

Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Data (Unaudited)


	Quarterly Period Ended
	March 31		June 30		September 30		December 31
2021
Revenue, net	$	9,270	$	14,050	$	15,196	$	16,586
Gross profit	3,725		7,110		7,985		8,873
Loss from operations	(7,914)		(4,457)		(3,904)		(3,727)
Loss before income taxes	(7,858)		(4,275)		(3,850)		(3,562)
Net loss attributable to Pixelworks Inc.	(8,075)		(4,382)		(4,073)		(3,291)

Net loss attributable to Pixelworks Inc. per share - basic and diluted	(0.16)		(0.08)		(0.08)		(0.06)

2020
Revenue, net	$	13,774	$	9,253	$	8,190	$	9,638
Gross profit	6,775		5,049		3,976		4,385
Loss from operations	(5,277)		(6,421)		(8,137)		(6,901)
Loss before income taxes	(5,223)		(6,445)		(8,165)		(6,098)
Net loss attributable to Pixelworks Inc.	(5,399)		(6,552)		(8,139)		(6,439)

Net loss attributable to Pixelworks Inc. per share - basic and diluted	(0.14)		(0.17)		(0.20)		(0.15)

Redeemable Non-Controlling Interest and Equity Interest of Pwsh Sold to Employees (Tables)

12 Months Ended

Dec. 31, 2021

Noncontrolling Interest [Abstract]

Redeemable Noncontrolling Interest

The components of the change in redeemable non-controlling interests for the year ended December 31, 2021 are presented in the following table (in thousands):


Carrying Value of Redeemable NCI as of January 1, 2021	$	—
Increase in non-controlling interest due to issuance of stock	30,844
Closing costs incurred	(868)
Net income attributable to redeemable non-controlling interest	409
Effect of foreign currency translation attributable to redeemable non-controlling interest	520
Carrying Value of Redeemable NCI as of December 31, 2021	$	30,905

Basis of Presentation (Details) $ in Thousands	12 Months Ended
Basis of Presentation (Details) $ in Thousands	Dec. 31, 2021 USD ($) patent	Dec. 31, 2020 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of patents held \| patent	335
Foreign currency transaction loss, realized \| $	$ 258	$ (419)

Summary of Significant Accounting Policies (Cash and cash equivalents) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Cash and Cash Equivalents [Abstract]
Cash equivalents, at carrying value	$ 15,254	$ 23,832

Summary of Significant Accounting Policies (Property and equipment) (Details)	12 Months Ended
	Dec. 31, 2021
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

Summary of Significant Accounting Policies (Licensed Technology) (Details)	12 Months Ended
	Dec. 31, 2021
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

Balance Sheet Components (Accounts Receivable) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts Receivable, after Allowance for Credit Loss [Abstract]
Accounts receivable, gross	$ 8,744	$ 4,713
Allowance for doubtful accounts	(36)	(41)	$ (23)
Accounts receivable, net	$ 8,708	$ 4,672

Balance Sheet Components (Allowance for Doubtful Accounts) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Allowance for Doubtful Accounts [Roll Forward]
Balance at beginning of year	$ 41	$ 23
Additions charged (reductions credited)	(5)	18
Balance at end of year	$ 36	$ 41

Balance Sheet Components (Inventories) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Finished goods	$ 461	$ 1,775
Work-in-process	1,008	670
Inventories	$ 1,469	$ 2,445

Balance Sheet Components (Inventories) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Inventory write-downs	$ 488	$ 95
Sale of previously written-down inventory	$ 9	$ 29

Balance Sheet Components (Property and Equipment) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Equipment, furniture and fixtures	$ 9,463	$ 8,889
Tooling	5,749	6,298
Software	5,230	5,711
Leasehold improvements	1,375	1,393
Gross carrying amount	21,817	22,291
Accumulated depreciation and amortization	(16,161)	(17,188)
Property and equipment, net	$ 5,656	$ 5,103

Balance Sheet Components (Property and Equipment) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Software amortization	$ 1,214	$ 1,174
Depreciation and amortization	$ 2,281	$ 2,227

Balance Sheet Components (Other Assets, Net) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Amortization of licensed technology	$ 153	$ 336

Balance Sheet Components (Acquired Intangible Assets, Net) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	$ 6,730	$ 6,730
Less: accumulated amortization	(6,640)	(5,523)
Acquired intangible assets, net	90	1,207
Amortization of acquired intangible assets	1,118
Cost of revenue
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	899
Selling, general and administrative
Finite-Lived Intangible Assets [Line Items]
Amortization of acquired intangible assets	219	304
Developed technology
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	$ 5,050	5,050
Developed technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	3 years
Developed technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	$ 1,270	1,270
Customer relationships \| Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	3 years
Customer relationships \| Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	5 years
Backlog and tradename
Finite-Lived Intangible Assets [Line Items]
Acquired intangible assets, gross	$ 410	$ 410
Backlog and tradename \| Minimum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	6 months
Backlog and tradename \| Maximum
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives	18 months

Balance Sheet Components (Future Amortization Expense) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 90
Acquired intangible assets, net	$ 90	$ 1,207

Balance Sheet Components (Goodwill) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Aug. 02, 2017
Goodwill [Line Items]
Goodwill	$ 18,407	$ 18,407
ViXS Systems, Inc.
Goodwill [Line Items]
Goodwill			$ 18,407

Balance Sheet Components (Accrued Liabilities and Current Portion of Long-Term Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Balance Sheet Related Disclosures [Abstract]
Accrued payroll and related liabilities	$ 3,490	$ 2,867
Operating lease liability, current	2,439	2,039
Deferred research and development reimbursement	1,838	0
Current portion of accrued liabilities for asset financings	1,077	786
Accrued interest payable	361	429
Accrued commissions and royalties	259	474
Deferred revenue	50	179	$ 146
Accrued costs related to restructuring	0	630
Other	4,049	2,048
Accrued liabilities and current portion of long-term liabilities	$ 13,563	$ 9,452
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities and current portion of long-term liabilities	Accrued liabilities and current portion of long-term liabilities

Balance Sheet Components (Deferred Revenue) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Deferred revenue:
Deferred revenue, beginning balance	$ 179	$ 146
Revenue recognized	(1,127)	(902)
Revenue deferred	998	935
Deferred revenue, ending balance	$ 50	$ 179

Balance Sheet Components (Short-Term Line of Credit) (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
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	$ 2,500
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, outstanding borrowings	$ 0	$ 0

- 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.

+ References + Details

Balance Sheet Components (Paycheck Protection Program) (Narrative) (Details) - USD ($)		3 Months Ended	12 Months Ended
	Apr. 25, 2020	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Gain on loan extinguishment			$ 0	$ 796,000
Notes Payable to Banks \| Paycheck Protection Program
Debt Instrument [Line Items]
Face amount of debt instrument	$ 796,000
Term of debt instrument	2 years
Stated interest rate (as a percent)	1.00%
Period until first payment	6 months
Gain on loan extinguishment		$ 796,000

Marketable Securities and Fair Value Measurements (Short Term Marketable Securities) (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	$ 253
Unrealized Gain (Loss)	(3)
Fair Value	250
Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	253
Unrealized Gain (Loss)	(3)
Fair Value	$ 250

Marketable Securities and Fair Value Measurements (Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Short-term marketable securities:		$ 250
Cash equivalents:
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Cash equivalents:	$ 15,254	23,832
Cash equivalents: \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Cash equivalents:	15,254	23,832
Cash equivalents: \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Cash equivalents:	0	0
Cash equivalents: \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Cash equivalents:	$ 0	0
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Short-term marketable securities:		250
Corporate debt securities \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Short-term marketable securities:		0
Corporate debt securities \| Level 2
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Short-term marketable securities:		250
Corporate debt securities \| Level 3
Fair Value, Assets and Liabilities Measured on Recurring [Line Items]
Short-term marketable securities:		$ 0

Restructuring (Narrative) (Details)	1 Months Ended
Restructuring (Narrative) (Details)	Jun. 30, 2019
August 2020 Plan
Restructuring Cost and Reserve [Line Items]
Approximate reduction in workforce from restructuring plan (percent)	14.00%
January 2020 Plan
Restructuring Cost and Reserve [Line Items]
Approximate reduction in workforce from restructuring plan (percent)	4.00%

Restructuring (Components of Restructuring Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Total restructuring expense	$ 0	$ 2,041
Restructuring Expense
Restructuring Cost and Reserve [Line Items]
Total restructuring expense	0	2,214
Cost of revenue
Restructuring Cost and Reserve [Line Items]
Employee severance and benefits	0	173
Total restructuring expense	0	173
Operating expenses
Restructuring Cost and Reserve [Line Items]
Employee severance and benefits	0	2,041
Total restructuring expense	$ 0	$ 2,041

Restructuring (Restructuring Reserve) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020	$ 630
Expensed	0
Payments	630
Balance as of December 31, 2021	0
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2020	630
Expensed	0
Payments	630
Balance as of December 31, 2021	$ 0

Leases - Narrative (Details)	12 Months Ended
Leases - Narrative (Details)	Dec. 31, 2021
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease terms on operating leases	1 year
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease terms on operating leases	6 years

Leases - Supplemental information related to leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease cost	$ 2,622	$ 2,721
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	2,809	2,816
Leased assets obtained in exchange for new operating lease liabilities	$ 629	$ 3,535
Weighted average remaining lease term (in years)	2 years 11 months 12 days	3 years 9 months 3 days
Weighted average discount rate	4.96%	4.99%

Leases - Future minimum lease payments under noncancellable leases (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Years ending December 31:
2022	$ 2,652
2023	1,376
2024	877
2025	364
2026	364
Thereafter	91
Total operating lease payments	5,724
Less imputed interest	(432)
Total operating lease liabilities	$ 5,292

Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue from External Customer [Line Items]
Revenues	$ 55,102	$ 40,855
IC sales
Revenue from External Customer [Line Items]
Revenues	50,807	39,205
Engineering services, license and other
Revenue from External Customer [Line Items]
Revenues	$ 4,295	$ 1,650

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

Revenue - Narrative (Details) $ in Thousands	12 Months Ended
Revenue - Narrative (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Unsatisfied performance obligations	$ 30
Expected timing of satisfaction of performance obligations	which we expect to recognize ratably over the next 3 months.

Interest Income (Expense) and Other, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Other Income and Expenses [Abstract]
Other income	$ 246	$ 161
Interest income	211	87
Interest expense	0	(239)
Total interest expense and other, net	$ 457	$ 9

Research and Development (Details) $ in Thousands	12 Months Ended
Research and Development (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, receivable recognized	$ 3,962
Upfront Payment
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, receivable	5,800
First Additional Payment
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, receivable	2,200
Second Additional Payment
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, receivable	1,300
Third Additional Payment
Research and Development Arrangement, Contract to Perform for Others [Line Items]
Research and development arrangement, receivable	$ 1,300

Income Taxes (Domestic and Foreign Pre-Tax Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Domestic									$ (10,967)	$ (25,590)
Foreign									(8,578)	(341)
Loss before income taxes	$ (3,562)	$ (3,850)	$ (4,275)	$ (7,858)	$ (6,098)	$ (8,165)	$ (6,445)	$ (5,223)	$ (19,545)	$ (25,931)

- Definition

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123384075&loc=d3e41242-110953

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(10))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(8))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(15))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

Income Taxes (Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Current:
Federal	$ (27)	$ (74)
State	19	3
Foreign	643	643
Total current	635	572
Deferred:
Foreign	(768)	26
Total deferred	(768)	26
Income tax expense (benefit)	$ (133)	$ 598

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Income Taxes (Reconciliation of U.S. Federal Statuatory Rate to our Effective Rate) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Federal statutory rate	21.00%	21.00%
Corporate restructuring	(38.00%)	0.00%
Change in valuation allowance	24.00%	0.00%
Expiration of tax attributes	(6.00%)	(14.00%)
Tax contingencies, net of reversals	(5.00%)	0.00%
Impact of foreign earnings	3.00%	(7.00%)
Permanent items	4.00%	(1.00%)
Research and development credits	2.00%	1.00%
Stock-based compensation	(1.00%)	(2.00%)
Other	(3.00%)	0.00%
Effective income tax rate	1.00%	(2.00%)

Income Taxes (Deferred Tax Assets, Liabilities and Valuation Allowance) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Research and experimentation credit and deduction carryforwards	$ 62,771	$ 65,772
Net operating loss carryforwards	45,985	50,917
Depreciation and amortization	5,664	2,282
Deferred stock-based compensation	994	1,158
Foreign tax credit carryforwards	208	275
Reserves and accrued expenses	992	145
Other	1,451	2,074
Total gross deferred tax assets	118,065	122,623
Deferred tax liabilities:
Other	(812)	(1,526)
Total gross deferred tax liabilities	(812)	(1,526)
Less valuation allowance	(116,372)	(120,981)
Net deferred tax assets	$ 881	$ 116

Income Taxes (Deferred Tax Assets, Liabilities and Valuation Allowance) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Tax Credit Carryforward [Line Items]
Deferred tax assets, net	$ 881	$ 116
Change in net valuation allowance	4,609	$ 24
CANADA
Tax Credit Carryforward [Line Items]
Deferred tax assets, net	$ 558

Income Taxes (Net Operating Loss Carryforwards and Tax Credits) (Narrative) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Tax Credit Carryforward [Line Items]
Operating loss carryforwards, carried forward indefinetly	$ 31,705
Reversed accrual	620
Federal [Member]
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	166,448
Tax credit carryforwards, research	7,823
State [Member]
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	6,756
Tax credit carryforwards, research	4,993
Foreign [Member]
Tax Credit Carryforward [Line Items]
Operating loss carryforwards	39,450
Tax credit carryforwards, research	24,252
General foreign tax credit	118
Canada Revenue Agency [Member] \| Foreign [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards, research	$ 120,906

Income Taxes (Uncertain Tax Positions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 1,610
Balance at end of year	2,493	$ 1,610
Uncertain Tax Positions [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	2,711	2,569
Accrual for positions taken in a prior year	825	24
Accrual for positions taken in current year	121	192
Reversals due to lapse of statute of limitations	(11)	(74)
Balance at end of year	3,646	2,711
Interest and Penalties [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	88	85
Accrual for positions taken in a prior year	16	18
Accrual for positions taken in current year	0	0
Reversals due to lapse of statute of limitations	(3)	(15)
Balance at end of year	$ 101	$ 88

Income Taxes (Uncertain Tax Positions) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Liability for uncertain tax positions, noncurrent	$ 2,493	$ 1,610
Reduction to deferred tax assets	1,254	1,189
Unrecognized tax benefits, income tax penalties and interest expense	16	$ 18
Anticipated decrease of unrecognized tax liability, within twelve months	$ 97

Commitments and Contingencies (Royalties) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Royalty Expense	$ 225	$ 242

Commitments and Contingencies (401(k) Plan) (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Employer contributions to 401(k) plan	$ 55	$ 48

Commitments and Contingencies (Future Minimum Payments) (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Software licenses
2022	$ 1,133
2023	365
Total	1,498
Less: Interest component	(65)
Present value of minimum software license payments	1,433
Less: Current portion	(1,077)
Long-term portion of obligations	$ 356

Commitments and Contingencies (Other Contractual Obligation) (Narrative) (Details) - ViXS Systems, Inc. - Debt associated with agreement with TPC - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Contractual obligation, other, current	$ 504	$ 499
Contractual obligation, other, noncurrent	$ 57	$ 268

Earnings Per Share (Earnings Per Share) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share [Abstract]
Net loss									$ (19,412)	$ (26,529)
Less: Net income attributable to redeemable non-controlling interest									(409)	0
Less: Net income attributable to certain entities owned by employees									(198)	0
Net loss attributable to Pixelworks Inc. - for purposes of earnings per share calculation									$ (20,019)	$ (26,529)
Weighted average shares outstanding - diluted (in shares)									52,509,000	40,712,000
Weighted average shares outstanding - basic (in shares)									52,509,000	40,712,000
Net loss attributable to Pixelworks, Inc. per share - basic (in usd per share)	$ (0.06)	$ (0.08)	$ (0.08)	$ (0.16)	$ (0.15)	$ (0.20)	$ (0.17)	$ (0.14)	$ (0.38)	$ (0.65)
Net loss attributable to Pixelworks, Inc. per share - diluted (in usd per share)	$ (0.06)	$ (0.08)	$ (0.08)	$ (0.16)	$ (0.15)	$ (0.20)	$ (0.17)	$ (0.14)	$ (0.38)	$ (0.65)

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1377-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3000-108585

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 23: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 26: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 29: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 31: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686

Reference 32: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794

+ Details

Earnings Per Share (Antidilutive Effect on Weighted Average Shares) (Details) - shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
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	3,832	4,148

Shareholders' Equity (Shareholders' Equity) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands								12 Months Ended
	Dec. 16, 2020	Dec. 16, 2020	Dec. 15, 2020	Dec. 15, 2020	Dec. 14, 2020	Dec. 07, 2020	Jun. 05, 2020	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Note [Abstract]
Preferred stock, shares authorized (in shares)								50,000,000	50,000,000
Preferred stock, par value (in usd per share)								$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)								0	0
Common stock, shares authorized (in shares)								250,000,000	250,000,000
Common stock, par value (in usd per share)							$ 0.001	$ 0.001	$ 0.001
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in usd per share)							$ 0.001	$ 0.001	$ 0.001
Common stock, shares reserved for future issuance								22,683,333
2006 Plan, number of shares available for grant								2,105,497
Equity Offering, Excluding Underwriter's Option
Subsidiary, Sale of Stock [Line Items]
Stock issued in transaction (shares)					4,900,000
Underwriter's Option
Subsidiary, Sale of Stock [Line Items]
Stock issued in transaction (shares)		735,000
Sale of stock, agreement term		30 days
Equity Offering
Subsidiary, Sale of Stock [Line Items]
Stock issued in transaction (shares)	5,635,000
Sale of stock, price per share (USD per share)	$ 2.45	$ 2.45
Net proceeds from transaction	$ 12,743
Private Placement
Subsidiary, Sale of Stock [Line Items]
Stock issued in transaction (shares)				2,475,712		724,288
Sale of stock, price per share (USD per share)			$ 2.071	$ 2.071		$ 2.071
Net proceeds from transaction			$ 6,210
At the Market Offering
Subsidiary, Sale of Stock [Line Items]
Stock issued in transaction (shares)								61,018	1,747,466
Net proceeds from transaction								$ 321	$ 4,429
Maximum aggregate offering price							$ 25,000
Commissions and fees							3.00%

Shareholders' Equity (Stock Options) (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2009	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, percent vested on one year anniversary of grant	25.00%
Options, monthly vesting percentage beginning after year one anniversary	2.083%
Options, number of months vesting after one year anniversary	36
Total intrinsic value of options exercised		$ 445	$ 28
Total intrinsic value of outstanding options		$ 684
Stock Option Plans:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, merit vesting period	3 years
Stock Option Plans: \| Minimum \| 2006 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, contractual life	6 years

Shareholders' Equity (Stock Options Activity Roll-forward) (Details)	12 Months Ended
	Dec. 31, 2021 $ / shares shares
Options Outstanding - Number of Shares
Options outstanding as of December 31, 2020: \| shares	719,067
Granted \| shares	0
Exercised \| shares	(352,375)
Canceled and forfeited \| shares	(500)
Expired \| shares	(11,583)
Options outstanding as of December 31, 2021: \| shares	354,609
Options Outstanding - Weighted Average Exercise Price
Options outstanding as of December 31, 2020: \| $ / shares	$ 2.53
Granted \| $ / shares	0
Exercised \| $ / shares	2.47
Canceled and forfeited \| $ / shares	4.56
Expired \| $ / shares	4.51
Options outstanding as of December 31, 2021: \| $ / shares	$ 2.52

Shareholders' Equity (Schedule of Shares Authorized Under Equity Compensation Plans, By Exercise Price) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number outstanding as of end of year	354,609	719,067
$2.00 - $2.00
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of exercise prices, minimum	$ 2.00
Range of exercise prices, maximum	$ 2.00
Number outstanding as of end of year	237,500
Options outstanding, weighted average remaining contractual life	4 years 9 months 14 days
Options outstanding, weighted average exercise price	$ 2.00
Number exercisable as of end of year	159,500
Options exerciseable, weighted average exercise price	$ 2.00
2.46 - 2.46
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of exercise prices, minimum	2.46
Range of exercise prices, maximum	$ 2.46
Number outstanding as of end of year	109,109
Options outstanding, weighted average remaining contractual life	1 year 8 months 1 day
Options outstanding, weighted average exercise price	$ 3.40
Number exercisable as of end of year	97,521
Options exerciseable, weighted average exercise price	$ 3.33
2.79- 6.05
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of exercise prices, minimum	2.79
Range of exercise prices, maximum	$ 6.05
Number outstanding as of end of year	8,000
Options outstanding, weighted average remaining contractual life	2 years 29 days
Options outstanding, weighted average exercise price	$ 6.05
Number exercisable as of end of year	7,667
Options exerciseable, weighted average exercise price	$ 6.05
$2.00 - $6.05
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]
Range of exercise prices, minimum	2.00
Range of exercise prices, maximum	$ 6.05
Number outstanding as of end of year	354,609
Options outstanding, weighted average remaining contractual life	3 years 9 months 7 days
Options outstanding, weighted average exercise price	$ 2.52
Number exercisable as of end of year	264,688
Options exerciseable, weighted average exercise price	$ 2.61

Shareholders' Equity (Options Vested or are Expected to Vest as of December 31, 2021) (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Stockholders' Equity Note [Abstract]
Vested, number of shares \| shares	264,688
Expected to vest, number of shares \| shares	88,517
Total, number of shares \| shares	353,205
Vested, weighted average exercise price \| $ / shares	$ 2.61
Expected to vest, weighted average exercise price \| $ / shares	2.26
Total, weighted average exercise price \| $ / shares	$ 2.52
Vested, weighted average remaining contractual term	3 years 5 months 23 days
Expected to vest, weighted average remaining contractual term	4 years 7 months 20 days
Total, weighted average remaining contractual term	3 years 9 months 7 days
Vested, aggregate intrinsic value \| $	$ 491
Expected to vest, aggregate intrinsic value \| $	190
Total, aggregate intrinsic value \| $	$ 681

Shareholders' Equity (Restricted Stock) (Narrative) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Note [Abstract]
Restricted stock grants, number of shares	2,123,844	2,137,317
Restricted stock grants, weighted average grant date fair value	$ 3.70	$ 3.42

Shareholders' Equity (Unvested Restricted Stock Units Activity Roll-Forward) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Unvested Restricted Stock Units - Number of Shares
Unvested at December 31, 2020:	3,176,605
Granted	2,123,844
Vested	(1,715,624)
Canceled	(268,790)
Unvested at December 31, 2021:	3,316,035	3,176,605
Expected to vest after December 31, 2021	3,090,192
Unvested Restricted Stock Units - Weighted Average Grant Date Fair Value
Unvested at December 31, 2020:	$ 3.68
Granted	3.70	$ 3.42
Vested	3.67
Canceled	3.84
Unvested at December 31, 2021:	3.69	$ 3.68
Expected to vest after December 31, 2021	$ 3.68

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, 2021	Dec. 31, 2020
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	3,300,000
Employee Stock Purchase Plans, shares issued		159,177	202,019
Employee Stock Purchase Plans, proceeds from shares issued		$ 411	$ 529

Shareholders' Equity (Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions) (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Stock Option Plans:
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk free interest rate	0.00%	2.00%
Expected dividend yield	0.00%	0.00%
Expected term (in years)		3 years 9 months
Volatility	0.00%	64.00%
Employee Stock Purchase Plan:
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk free interest rate	0.12%	0.79%
Expected dividend yield	0.00%	0.00%
Expected term (in years)	1 year 2 months 1 day	1 year 18 days
Volatility	75.00%	65.00%

Shareholders' Equity (Stock-based Compensation Expense) (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	12 Months Ended
	May 31, 2009	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, grants in period, weighted average grant date fair value			$ 0.93
Nonvested awards, total compensation cost not yet recognized		$ 5,560
Nonvested awards, total compensation cost not yet recognized, period for recognition		1 year 1 month 13 days
Stock Option Plans:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected dividend yield		0.00%	0.00%
Minimum \| 2006 Plan \| Stock Option Plans:
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan modification, contractual life	6 years

Segment Information (Geographic Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Revenue, net	$ 16,586	$ 15,196	$ 14,050	$ 9,270	$ 9,638	$ 8,190	$ 9,253	$ 13,774	$ 55,102	$ 40,855
Japan
Revenue, net									27,001	26,554
China
Revenue, net									23,977	8,935
Taiwan
Revenue, net									2,142	1,668
U.S.
Revenue, net									1,624	3,057
Europe
Revenue, net									242	333
Korea
Revenue, net									$ 116	$ 308

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 22: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

Segment Information (Schedule of Revenue by Major Customer) (Details) - Revenue - Customer Concentration Risk

12 Months Ended

Dec. 31, 2021

Dec. 31, 2020

All distributors

Revenue, Major Customer [Line Items]

Percentage of revenue

56.00%

49.00%

Distributor A

Revenue, Major Customer [Line Items]

Percentage of revenue

27.00%

7.00%

Distributor B

Revenue, Major Customer [Line Items]

Percentage of revenue

13.00%

23.00%

Top five end customers

Revenue, Major Customer [Line Items]

Percentage of revenue

^[1]

76.00%

58.00%

End customer A

Revenue, Major Customer [Line Items]

Percentage of revenue

^[1]

35.00%

40.00%

End customer B

Revenue, Major Customer [Line Items]

Percentage of revenue

^[1]

22.00%

5.00%

[1]	End customers include customers who purchase directly from us, as well as customers who purchase our products indirectly through distributors.

Segment Information (Accounts Receivable by Major Customer) (Details) - Accounts receivable - Customer Concentration Risk	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Account X
Segment Reporting Information [Line Items]
Percentage of accounts receivable	41.00%	39.00%
Account Y
Segment Reporting Information [Line Items]
Percentage of accounts receivable	27.00%	20.00%
Account Z
Segment Reporting Information [Line Items]
Percentage of accounts receivable	15.00%	7.00%

Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Revenue, net	$ 16,586	$ 15,196	$ 14,050	$ 9,270	$ 9,638	$ 8,190	$ 9,253	$ 13,774	$ 55,102	$ 40,855
Gross profit	8,873	7,985	7,110	3,725	4,385	3,976	5,049	6,775	27,693	20,185
Loss from operations	(3,727)	(3,904)	(4,457)	(7,914)	(6,901)	(8,137)	(6,421)	(5,277)	(20,002)	(26,736)
Loss before income taxes	(3,562)	(3,850)	(4,275)	(7,858)	(6,098)	(8,165)	(6,445)	(5,223)	(19,545)	(25,931)
Net loss	$ (3,291)	$ (4,073)	$ (4,382)	$ (8,075)	$ (6,439)	$ (8,139)	$ (6,552)	$ (5,399)	$ (19,821)	$ (26,529)
Net loss per share:
Basic (in dollars per share)	$ (0.06)	$ (0.08)	$ (0.08)	$ (0.16)	$ (0.15)	$ (0.20)	$ (0.17)	$ (0.14)	$ (0.38)	$ (0.65)
Diluted (in dollars per share)	$ (0.06)	$ (0.08)	$ (0.08)	$ (0.16)	$ (0.15)	$ (0.20)	$ (0.17)	$ (0.14)	$ (0.38)	$ (0.65)
Restructuring charges									$ 0

Redeemable Non-Controlling Interest and Equity Interest of Pwsh Sold to Employees - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Redeemable Noncontrolling Interest [Line Items]
Increase in non-controlling interest due to issuance of stock	$ 30,844
PWSH Employees and Subsidiaries
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage	75.00%
Annual interest percentage included	0.05
PWSH Employees and Subsidiaries \| Equity Sale to ESOP
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage	5.95%
Increase in non-controlling interest due to issuance of stock	$ 12,329
Discount on valuation	0.30
The Investors \| Equity Sale to Investors
Redeemable Noncontrolling Interest [Line Items]
Increase in non-controlling interest due to issuance of stock	$ 30,844
Ownership percentage by noncontrolling owners	10.45%

Redeemable Non-Controlling Interest and Equity Interest of Pwsh Sold to Employees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Carrying Value of Redeemable NCI as of January 1, 2021	$ 0
Increase in non-controlling interest due to issuance of stock	30,844
Closing costs incurred	(868)
Net income attributable to redeemable non-controlling interest	409	$ 0
Effect of foreign currency translation attributable to redeemable non-controlling interest	520
Carrying Value of Redeemable NCI as of December 31, 2021	$ 30,905	$ 0

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(24))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.31)
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(22))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

+ Details

Label	Element	Value
public float share price	pxlw_Publicfloatshareprice	$ 3.41