Restructuring and Related Activities [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] 2016 Restructuring Plan 2016 Restructuring Plan [Member] 2016 Restructuring Plan [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Approximate reduction in workforce from restructuring plan (percent) Restructuring and Related Cost, Number of Positions Eliminated, Period Percent Earnings Per Share [Abstract] Net income (loss) Net Income (Loss) Attributable to Parent Weighted average shares outstanding, basic Weighted Average Number of Shares Outstanding, Basic Dilutive effect of employee equity incentive plans Weighted Average Number Diluted Shares Outstanding Adjustment Weighted average shares outstanding, diluted Weighted Average Number of Shares Outstanding, Diluted Net income (loss) per share, basic Earnings Per Share, Basic Net income (loss) per share, diluted Earnings Per Share, Diluted Statement of Cash Flows [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Adjustments to reconcile net income (loss) to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Stock-based compensation Share-based Compensation Reversal of uncertain tax positions Reversal of uncertain tax positions Reversal of previously recorded tax contingencies due to the expiration of applicable statutes of limitation. Write off of certain assets to restructuring Restructuring Costs and Asset Impairment Charges Other Other Noncash Income (Expense) Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable, net Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Prepaid expenses and other current and long-term assets, net Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Accrued current and long-term liabilities Increase (Decrease) in Accrued Liabilities Income taxes payable Increase (Decrease) in Income Taxes Payable Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of common stock under employee equity incentive plans Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Payments on asset financings Repayments of Other Debt Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents, beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents, end of period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for income taxes, net of refunds received Income Taxes Paid Cash paid during the period for interest Interest Paid Non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Acquisitions of property and equipment and other assets under extended payment terms Fixed asset and other asset expenses incurred but not yet paid Acquisitions of property and equipment and other assets under extended payment terms. Balance Sheet Related Disclosures [Abstract] Accounts Receivable, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Allowance for Doubtful Accounts Allowance for Credit Losses on Financing Receivables [Table Text Block] Inventories Schedule of Inventory, Current [Table Text Block] Property and Equipment, Net Schedule of property and equipment [Table Text Block] Schedule of property and equipment Accrued Liabilities and Current Portion of Long-Term Liabilities Schedule of Accrued Liabilities [Table Text Block] Liability for Warranty Returns Schedule of Product Warranty Liability [Table Text Block] Balance Sheet Components Balance sheet components [Text Block] Balance sheet components [Text Block] Segment Reporting [Abstract] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue, net Sales [Member] Major Customers [Axis] Customer [Axis] Name of Major Customer [Domain] Customer [Domain] All distributors All Distributors [Member] All Distributors [Member] Distributor A Distributor A [Member] Distributor A [Member] Top five end customers Top five end customers [Member] Top five end customers [Member] End customer A End customer A [Member] End customer A [Member] End customer B End customer B [Member] End customer B [Member] Revenue, Major Customer Revenue, Major Customer [Line Items] Percentage of revenue Concentration Risk, Percentage Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net Accounts Receivable, Net, Current Inventories Inventory, Net Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Other assets, net Other Assets, Noncurrent Total assets Assets LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Accrued liabilities and current portion of long-term liabilities Accrued Liabilities, Current Current portion of income taxes payable Accrued Income Taxes, Current Total current liabilities Liabilities, Current Long-term liabilities, net of current portion Accounts Payable and Accrued Liabilities, Noncurrent Income taxes payable, net of current portion Accrued Income Taxes, Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 10) Commitments and Contingencies Shareholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock Preferred Stock, Value, Issued Common stock Common Stocks, Including Additional Paid in Capital Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated deficit Retained Earnings (Accumulated Deficit) Total shareholders’ equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders’ equity Liabilities and Equity Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Cost of revenue — restructuring: Cost of Sales [Member] Operating expenses — restructuring: Operating Expense [Member] Tooling and inventory write offs Inventory Write-down Employee severance and benefits Severance Costs Licensed technology and other assets write offs Asset Impairment Charges Other Other Restructuring Costs Total restructuring expense Restructuring, Settlement and Impairment Provisions Research and Development [Abstract] Research and Development Collaborative Arrangement Disclosure [Text Block] Deferred research and development reimbursement deferred research and development reimbursement Deferred benefit for reimbursement payments associated with development agreements Accrued commissions and royalties Accrued Commisions and Royalties, Current Carrying value as of the balance sheet date of obligations incurred through that date and payable for commisions and royalties. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Accrued interest payable Interest Payable, Current Accrued payroll and related liabilities Employee-related Liabilities, Current Current portion of accrued liabilities for asset financings Other Liabilities, Current Liability for warranty returns Standard Product Warranty Accrual Accrued costs related to restructuring Restructuring Reserve, Current Other Other Accrued Liabilities, Current Accrued liabilities and current portion of long-term liabilities Gross carrying amount Property, Plant and Equipment, Gross Less: accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Organization, Consolidation and Presentation of Financial Statements [Abstract] Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Income Statement [Abstract] Statement [Table] Statement [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Cost of revenue Statement [Line Items] Statement [Line Items] Revenue, net Revenue, Net Cost of revenue (1) Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development (2) Research and Development Expense Selling, general and administrative (3) Selling, General and Administrative Expense Restructuring Total operating expenses Operating Expenses Income (loss) from operations Operating Income (Loss) Interest expense and other, net Other Nonoperating Income (Expense) Income (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income (loss) Allowance for Doubtful Accounts Receivable [Roll Forward] Allowance for Doubtful Accounts Receivable [Roll Forward] Balance at beginning of period Allowance for Doubtful Accounts Receivable, Current Additions charged (reductions credited) Allowance for Doubtful Accounts Receivable, Period Increase (Decrease) Balance at end of period Movement in Standard Product Warranty Accrual [Roll Forward] Movement in Standard Product Warranty Accrual [Roll Forward] Balance at beginning of period Provision (benefit) Standard Product Warranty Accrual, Period Increase (Decrease) Charge-offs Standard Product Warranty Accrual, Payments Balance at end of period Number of patents held Number of Patents Number of patents held by the Company related to visual display of digital image data. Adjustment to retained earnings Adjustment to retained earnings Cumulative-effect adjustment to retained earnings for a change in policy election to account for forfeitures as they occur, consistent with guidance in ASU 2016-09. Finished goods Inventory, Finished Goods, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Inventories Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit facility, component of calculation for maximum borrowing amount under formula advances Line of credit facility, component of calculation for maximum borrowing amount under formula advances Maximum amount available to borrow under revolving line of credit is limited by the lesser of $10 million or $1 million plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. Line of credit facility maximum borrowing capacity limited by eligible AR Line of credit facility maximum borrowing capacity limited by eligible AR Maximum amount available to borrow under revolving line of credit is limited by the lesser of $10 million or $1 million plus 80% of eligible domestic accounts receivable and certain foreign accounts receivable. Line of credit facility, maximum borrowing capacity under non-formula advances Line of credit facility, maximum borrowing capacity under non-formula advances Line of credit facility, maximum borrowing capacity under non-formula advances which may be made solely during the last five busines days of any fiscal month or quarter and which must be repaid by the Company on or before the fifth business day after the applicable fiscal month or quarter end. Research And Development Benefit Recognized Research And Development Benefit Recognized Offset to research and development expense under development agreements. Amount receivable as of date of development agreement Amount receivable as of date of development agreement Amounts receivable upon signing of co-development agreement. Amounts payable upon completion of milestones Amounts payable upon completion of milestones Amounts payable upon completion of certain development milestones for development agreements entered into. Restructuring Restructuring and Related Activities Disclosure [Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entities [Table] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Entity Information [Line Items] Entity Information [Line Items] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Earnings Per Share Earnings Per Share [Text Block] Revenue by Geography [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Statement, Geographical [Axis] Geographical [Axis] Segment, Geographical [Domain] Geographical [Domain] Japan JAPAN Taiwan TAIWAN, PROVINCE OF CHINA Europe Europe [Member] Korea KOREA, REPUBLIC OF China CHINA United States UNITED STATES Other Geographical Region Other [Member] Other [Member] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Restructuring Expense by Components Restructuring and Related Costs [Table Text Block] Schedule of Accrued Restructuring Liabilities Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Employee severance and benefits Employee Severance [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Balance as of December 31, 2016 Restructuring Reserve Expensed Restructuring Charges Payments Payments for Restructuring Balance as of March 31, 2017 Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Money market funds Cash and Cash Equivalents, Fair Value Disclosure Income Tax Disclosure [Abstract] Reversal of uncertain tax positions Liability for uncertain tax positions Liability for Uncertain Tax Positions, Noncurrent Reduction to deferred tax assets Reduction to deferred tax assets Reduction to deferred tax assets Estimated decrease in total gross unrecognized tax benefits as a result of resolutions of global tax examinations and expiration of applicable statutes of limitations, including interest and penalties Decrease in Unrecognized Tax Benefits is Reasonably Possible Excess tax benefits Excess Tax Benefits Amount of excess tax benefits for which a benefit could not be previously recognized until adoption of ASU 2016-09. Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Accounts Receivable Accounts Receivable [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Segment Reporting Information Segment Reporting Information [Line Items] Number of customers included in five largest customer concentration disclosure Segment Reporting, Additional Information about Entity's Reportable Segments Concentration risk benchmark percentage Concentration risk benchmark percentage Percentage threshold over which a concentration risk is deemed to exist necessitating disclosure. Risks and Uncertainties [Abstract] Risks and Uncertainties Concentration Risk Disclosure [Text Block] Account W Account A [Member] Account A [Member] Account X Account B [Member] Account B [Member] Account Y Account C [Member] Account C [Member] Account Z Account D [Member] Account D [Member] Percentage of accounts receivable Fair Value Measurements Fair Value Disclosures [Text Block] Incomes Taxes Income Tax Disclosure [Text Block] Employee equity incentive plans (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Revenue by Geographic Region Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Schedule of Revenue from Significant Customers Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedule of Accounts Receivable Percentage from Significant Customers Schedule of accounts receivable percentages from significant customers [Table Text Block] This element may be used to disclose the percentage of accounts receivable from individual significant customers, those representing 10% or more of total accounts receivable. Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Receivables, Policy Receivables, Policy [Policy Text Block] Inventory, Policy Inventory, Policy [Policy Text Block] Co-Development Arrangements, Policy Collaborative Arrangement, Accounting Policy [Policy Text Block] Accounts Receivable, Net [Abstract] Accounts Receivable, Net [Abstract] Accounts receivable, gross Accounts Receivable, Gross Less: allowance for doubtful accounts Accounts receivable, net Schedule of Fair Value, Assets Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Segment Information Segment Reporting Disclosure [Text Block] Research and development Research and Development Expense [Member] Selling, general and administrative General and Administrative Expense [Member] Stock-based compensation Allocated Share-based Compensation Expense Restructuring