Entity Central Index Key Document and entity information. Document And Entity Information [Abstract] Cover [Abstract] Cover [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Trading Symbol Trading Symbol Entity Filer Category Entity Filer Category Entity Shell Company Entity Shell Company Entity Current Reporting Status Entity Current Reporting Status Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity File Number Entity File Number Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Entity Incorporation, State or Country Code Entity Incorporation State Country Code Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Accounts receivable, net of allowance for doubtful accounts of $250 as of April 3, 2021 and $244 as of January 2, 2021 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 Intangible assets, net Finite Lived Intangible Assets Net Goodwill Goodwill Operating lease right-of-use assets, net Operating Lease Right Of Use Asset Other long-term assets Other Assets Noncurrent Total assets Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Accrued compensation Employee Related Liabilities Current Accrued expenses Accrued Liabilities Current Other current liabilities Other Liabilities Current Current portion of PPP loan Long Term Debt Current Accrued warranty Product Warranty Accrual Classified Current Deferred revenue Contract With Customer Liability Current Operating lease liabilities Operating Lease Liability Current Total current liabilities Liabilities Current Long-term liabilities: Liabilities Noncurrent [Abstract] PPP loan Long Term Debt Accrued warranty Product Warranty Accrual Noncurrent Deferred revenue Contract With Customer Liability Noncurrent Operating lease liabilities Operating Lease Liability Noncurrent Other long-term liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 8) Commitments And Contingencies Stockholders’ equity: Stockholders Equity [Abstract] Preferred stock, $0.01 par value, 2,000,000 shares authorized, no shares issued and outstanding Preferred Stock Value Common stock, $0.01 par value: Authorized: 30,000,000 shares; Issued and outstanding 15,522,809 and 13,899,683 shares as of April 3, 2021 and January 2, 2021, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated deficit Retained Earnings Accumulated Deficit Total stockholders’ equity Stockholders Equity Total liabilities and stockholders’ equity Liabilities And Stockholders Equity Accounts receivable, allowance for doubtful accounts Allowance For Doubtful Accounts Receivable Current Preferred stock, par value Preferred Stock Par Or Stated Value Per Share Preferred stock, shares authorized Preferred Stock Shares Authorized Preferred stock, shares issued Preferred Stock Shares Issued Preferred stock, shares outstanding Preferred Stock Shares Outstanding Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Income Statement [Abstract] Total revenues Revenue From Contract With Customer Excluding Assessed Tax Cost of revenues Cost Of Revenue Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Expense Sales and marketing Selling And Marketing Expense General and administrative General And Administrative Expense Total operating expenses Operating Expenses Loss from operations Operating Income Loss Other income, net Nonoperating Income Expense Loss from operations before provision for income taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Provision for income taxes Income Tax Expense Benefit Net loss Net Income Loss Net loss per share: Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Weighted average shares used in computing net loss per common share: Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Income And Comprehensive Income [Abstract] Net loss Foreign currency translation adjustments Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent Comprehensive loss Comprehensive Income Net Of Tax Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid In Capital [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Accumulated Deficit Retained Earnings [Member] Statement [Line Items] Statement [Line Items] Beginning Balance, value Beginning Balance, shares Issuance of common stock, net of issuance costs Stock Issued During Period Value New Issues Issuance of common stock, net of issuance costs, shares Stock Issued During Period Shares New Issues Issuance of common stock under stock option plan Stock Issued During Period Value Stock Options Exercised Issuance of common stock under stock option plan, shares Stock Issued During Period Shares Stock Options Exercised Employee stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Release of restricted stock, net of taxes paid Adjustments Related To Tax Withholding For Share Based Compensation Release of restricted stock, shares net of taxes paid Stock Issued During Period Shares Restricted Stock Award Gross Other comprehensive income Other Comprehensive Income Loss Net Of Tax Ending Balance, value Ending Balance, shares Increase decrease in prepaid deferred expense and other current assets. Increase decrease in operating lease right of use assets. The increase (decrease) during the reporting period in warranty expenses incurred but not yet paid. Increase decrease In operating lease liabilities Transfer of inventory to property and equipment. Statement Of Cash Flows [Abstract] Operating activities: Net Cash Provided By Used In Operating Activities [Abstract] Net loss Profit Loss Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation And Amortization Stock-based compensation Allocated Share Based Compensation Expense Provision for doubtful accounts Provision For Doubtful Accounts Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Inventories Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Current Assets Operating lease right-of-use assets Increase Decrease In Operating Lease Right Of Use Assets Other long-term assets Increase Decrease In Other Noncurrent Assets Accounts payable Increase Decrease In Accounts Payable Accrued compensation Increase Decrease In Employee Related Liabilities Accrued expenses Increase Decrease In Accrued Liabilities Accrued warranty Increase Decrease In Accrued Warranty Liabilities Deferred revenue Increase Decrease In Contract With Customer Liability Operating lease liabilities Increase Decrease In Operating Lease Liabilities Other liabilities Increase Decrease In Other Operating Liabilities Net cash provided by (used in) operating activities Net Cash Provided By Used In Operating Activities Investing activities: Net Cash Provided By Used In Investing Activities [Abstract] Acquisition of property and equipment Payments To Acquire Property Plant And Equipment Cash paid for business combination, net Payments To Acquire Businesses Net Of Cash Acquired Net cash used in investing activities Net Cash Provided By Used In Investing Activities Financing activities: Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from issuance of common stock, net of issuance costs Proceeds From Issuance Of Common Stock Proceeds from stock option exercise Proceeds From Stock Options Exercised Taxes paid related to net share settlements of equity awards Payments Related To Tax Withholding For Share Based Compensation Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Effect of foreign exchange rate changes Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Net decrease in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents, beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents, end of period Supplemental disclosure of non-cash activities: Noncash Investing And Financing Items [Abstract] Transfer of inventory to property and equipment Transfer Of Inventory To Property And Equipment Organization Consolidation And Presentation Of Financial Statements [Abstract] Basis of Presentation Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Significant transactions text block Business Combinations [Abstract] Significant Transactions Significant Transactions [Text Block] Inventory Disclosure [Abstract] Inventories Inventory Disclosure [Text Block] Goodwill And Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Goodwill And Intangible Assets Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements Fair Value Disclosures [Text Block] Debt Disclosure [Abstract] PPP Loan Long Term Debt [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stockholder' Equity and Stock Based Compensation Shareholders Equity And Share Based Payments [Text Block] Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Computation of Basic and Diluted Net Loss Per Common Share Earnings Per Share [Text Block] Segment Reporting [Abstract] Business Segments Segment Reporting Disclosure [Text Block] Financial Statement Presentation Basis Of Accounting Policy Policy [Text Block] Use of Estimates Use Of Estimates Revenue Recognition Revenue From Contract With Customer Policy [Text Block] Leases Lessee Leases Policy [Text Block] Concentration of Credit Risk Concentration Risk Credit Risk Taxes Collected from Customers and Remitted to Governmental Authorities Utility Revenue And Expense Recognition Policy Contract with customer, shipping and handling costs. Shipping and Handling Costs Contract With Customer Shipping And Handling Costs Policy [Text Block] Contract with customer liability. Deferred Revenue Contract With Customer Liability Policy [Text Block] Warranty Standard Product Warranty Policy Reclassifications Prior Period Reclassification Adjustment Description Recently Adopted Accounting Standards New Accounting Pronouncements Policy Policy [Text Block] Reconciliation of Changes in Deferred Revenue Contract With Customer Asset And Liability Table [Text Block] Reconciliation of Changes in Warranty Liability Schedule Of Product Warranty Liability Table [Text Block] Schedule of allocation of net proceeds on fair value basis table text block Schedule of Allocation of Net Proceeds on Fair Value Basis Schedule Of Allocation Of Net Proceeds On Fair Value Basis Table [Text Block] Business allocation preliminary allocation of purchase price table text block Schedule of Preliminary Allocation of Purchase Price Business Acquisition Preliminary Allocation Of Purchase Price Table [Text Block] Components of Inventories Schedule Of Inventory Current Table [Text Block] Summary of Components of Gross and Net Intangible Asset Schedule Of Finite Lived Intangible Assets Table [Text Block] Future Estimated Amortization Expense Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Financial Assets Measured and Recognized at Fair Value on a Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Schedule of Maturities of Operating Lease Liabilities Lessee Operating Lease Liability Maturity Table [Text Block] Stock-Based Compensation Expenses Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Stock Options Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Weighted Average Assumptions for Fair Value Estimate of Stock-Based Awards (Options) Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock Options Outstanding, Vested, Expected to Vest and Exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Table [Text Block] Restricted Stock Units Schedule Of Sharebased Compensation Restricted Stock And Restricted Stock Units Activity Table [Text Block] Reconciliation of Numerator and Denominator of Basic and Diluted Net Loss Per Common Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Schedule of Revenue Information by Product Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block] Revenue Information by Geographic Region Schedule Of Revenues From External Customers And Long Lived Assets By Geographical Areas Table [Text Block] Service contract warranty period. Disclosure summary of significant accounting policies. Summary of significant accounting policies. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] Royalty Agreements Royalty [Member] Concentration Risk Benchmark Concentration Risk By Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Revenue, Total Revenue From Contract With Customer [Member] Accounts Receivable Accounts Receivable [Member] Revenue, Total Sales Revenue Net [Member] Concentration Risk Type Concentration Risk By Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Credit Concentration Risk Credit Concentration Risk [Member] Disclosure Summary Of Significant Accounting Policies [Line Items] Disclosure Summary Of Significant Accounting Policies [Line Items] Service contract warranty period Service Contract Warranty Period Service contract threshold period to determine nature of sale. Service contract, period to determine nature of sale Service Contract Threshold Period To Determine Nature Of Sale Number of customers. Number of customers Number Of Customers Refundable arrangement fee Arrangement expiration date Fair value of distribution right Arrangement fee Customer deposir Arrangement fee Refundable Arrangement Fee Arrangement expiration period Arrangement Expiration Period Fair value of distribution right Fair Value Of Distribution Right Arrangement fee Arrangement Fee Customer deposit Customer Deposit Percentage of accounts receivable accounted. Customer and supplier accounted percentage of total revenues, accounts receivable and purchases Concentration Risk Percentage1 Percentage of accounts receivable accounted Percentage Of Accounts Receivable Accounted Contract with customer liability additions. Contract with customer liability deductions from reserves. Reconciliation of the changes in the Company's deferred revenue balance Movement In Deferred Revenue Roll Forward Balance, beginning of period Contract With Customer Liability Additions to deferral Contract With Customer Liability Additions Revenue recognized Contract With Customer Liability Revenue Recognized Deductions from reserves Contract With Customer Liability Deductions From Reserves Balance, end of period Non-current portion of deferred revenue Current portion of deferred revenue Noncurrent portion of deferred revenue pertains to exclusivity fee deferred revenue. Current portion of deferred revenue pertains to exclusivity fee deferred revenue. Deferred revenue recognized Contract With Customer Performance Obligation Satisfied In Previous Period Non-current portion of deferred revenue pertains to exclusivity fee deferred revenue Noncurrent Portion Of Deferred Revenue Pertains To Exclusivity Fee Deferred Revenue Current portion of deferred revenue pertains to exclusivity fee deferred revenue Current Portion Of Deferred Revenue Pertains To Exclusivity Fee Deferred Revenue Products warranty period. Products warranty period Products Warranty Period Reconciliation of the changes in the Company's warranty liability Movement In Standard Product Warranty Accrual Roll Forward Balance, beginning of period Standard Product Warranty Accrual Accruals for product warranties Standard Product Warranty Accrual Warranties Issued Cost of warranty claims Standard Product Warranty Accrual Payments Adjustment to pre-existing warranties Standard Product Warranty Accrual Preexisting Increase Decrease Balance, end of period Schedule Of Business Acquisitions By Acquisition [Table] Schedule Of Business Acquisitions By Acquisition [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition Acquiree [Domain] Topcon corporation member Topcon [Member] Topcon Corporation [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] TMLS member TMLS T M L S [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Sale of equity interest Grant of exclusive distribution rights Purchase of tangible and intangible assets Net proceeds total Sale of equity interest (before issuance costs) Sale Of Equity Interest Grant of exclusive distribution rights Grant Of Exclusive Distribution Rights Purchase of tangible and intangible assets Purchase Of Tangible And Intangible Assets Net Proceeds Net Proceeds Acqusition of a business and the purchase price Business Acquisitions Purchase Price Allocation Year Of Acquisition Net Effect On Income Purchase price allocation during the remainder of the measurement period Business Acquisitions Purchase Price Allocation Subsequent Years Remaining Adjustments Finite-Lived Intangible Assets by Major Class Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite Lived Intangible Assets Major Class Name [Domain] Computer and Software [Member] Computer Software Intangible Asset [Member] Developed Technology [Member] Developed Technology Rights [Member] In Process Research and Development [Member] In Process Research And Development [Member] Trademarks and Trade Names [Member] Trademarks And Trade Names [Member] Customer Relationships [Member] Customer Relationships [Member] Inventory Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Inventory Intangible Assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Intangibles Manufacturing and Office Equipment Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Equipment Other tangible assets Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Other Noncurrent Assets Total Business Combination Recognized Identifiable Assets Acquired Goodwill And Liabilities Assumed Net Raw materials Inventory Raw Materials Net Of Reserves Work in process Inventory Work In Process Net Of Reserves Finished goods Inventory Finished Goods Net Of Reserves Total inventories Carrying value of goodwill Impairment of goodwill Goodwill Impairment Loss Customer relationships Developed technology Trade names Trade Names [Member] In-process R&D Schedule of Intangible Assets Finite Lived Intangible Assets Net [Abstract] Gross Carrying Amount Finite Lived Intangible Assets Gross Accumulated Amortization Finite Lived Intangible Assets Accumulated Amortization Net Carrying Amount Remaining Amortization Life Finite Lived Intangible Assets Remaining Amortization Period1 Amortization expense Amortization Of Intangible Assets Amount of amortization for asset, excluding financial asset and goodwill, lacking physical substance with finite life expected to be recognized after fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Finite lived intangible asset future amortization expense total. Future estimated amortization expense Finite Lived Intangible Assets Future Amortization Expense [Abstract] 2021 (nine months) Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year 2022 Finite Lived Intangible Assets Amortization Expense Next Twelve Months 2023 Finite Lived Intangible Assets Amortization Expense Year Two 2024 Finite Lived Intangible Assets Amortization Expense Year Three 2025 Finite Lived Intangible Assets Amortization Expense Year Four Thereafter Finite Lived Intangible Asset Amortization Expense After Year Four Net Carrying Amount Finite Lived Intangible Asset Future Amortization Expense Total Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Level 2 Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 Fair Value Inputs Level1 [Member] Level 2 Fair Value Inputs Level2 [Member] Level 3 Fair Value Inputs Level3 [Member] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value Measurements Recurring Fair Value Measurements Recurring [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] Money Market Funds Money Market Funds [Member] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] Assets: Assets Fair Value Disclosure [Abstract] Assets, Fair Value Measurements Assets Fair Value Disclosure Debt instrument payment commencement period. Debt Instrument [Table] Debt Instrument [Table] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] U.S. small business administration loan (SBA Loan). Small Business Administration (SBA Loan) [Member] Small Business Administration Loan [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Paycheck protection program. PPP Loan [Member] Paycheck Protection Program [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Aggregate principal amount Principal Amount Outstanding On Loans Securitized Fixed interest rate Debt Instrument Interest Rate Stated Percentage Interest rate on outstanding principal amount Debtor In Possession Financing Interest Rate On Borrowings Outstanding Payment commencement period Debt Instrument Payment Commencement Period Loan maturity date Debt Instrument Maturity Date Term of loan Debt Instrument Term Loan forgiveness amount Debt Instrument Decrease Forgiveness Accrued Interest Debt Instrument Increase Accrued Interest PPP loans exceed amount Unsecured Long Term Debt Commitments and contingencies. Commitments and contingencies. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Operating lease, expenses Operating Lease Expense Operating lease, weighted average discount rate Operating Lease Weighted Average Discount Rate Percent Operating lease, weighted average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Operating Lease Liabilities Payments Due [Abstract] Remainder of 2021 (9 months) Lessee Operating Lease Liability Payments Due Next Twelve Months 2022 Lessee Operating Lease Liability Payments Due Year Two 2023 Lessee Operating Lease Liability Payments Due Year Three 2024 Lessee Operating Lease Liability Payments Due Year Four 2025 Lessee Operating Lease Liability Payments Due Year Five Total lease payments Lessee Operating Lease Liability Payments Due Less: Imputed interest Lessee Operating Lease Liability Undiscounted Excess Amount Total lease liabilities Operating Lease Liability Area of premises. Base monthly rent. Area of Premises Area Of Premises Base monthly rent Base Monthly Rent Lease expiration date Lease Expiration Date1 Future minimum purchase commitment payments Purchase Obligation Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of revenues Cost Of Sales [Member] Research and development Research And Development Expense [Member] Sales and marketing Selling And Marketing Expense [Member] General and administrative General And Administrative Expense [Member] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Stock-based compensation expense Total unrecognized compensation cost related to non-vested share-based compensation arrangements Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Cost is expected to be recognized over a weighted average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Additional General Disclosures [Abstract] Outstanding, Number of Shares, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of Shares, Options Granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Number of Shares, Options Exercised Number of Shares, Options Cancelled or forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Outstanding, Number of Shares, Ending Balance Outstanding, Weighted Average Exercise Price Per Share, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Options Granted Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Options Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted Average Exercise Price Per Share, Options Cancelled or forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Outstanding, Weighted Average Exercise Price Per Share, Ending Balance Aggregate Intrinsic Value, Ending Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Weighted-average grant date fair value of the options granted Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Weighted average assumptions for fair value estimate of stock-based awards (options) Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions And Methodology [Abstract] Average risk free interest rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Expected life (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Dividend yield Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Average volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate Stock options outstanding, exercisable and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract] Options outstanding, Number of Shares Options vested and expected to vest, Number of Shares Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Options exercisable, Number of Shares Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Options outstanding, Weighted Average Exercise Price Options vested and expected to vest, Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Options exercisable, Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Options outstanding, Weighted Average Remaining Contractual Life (Years) Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Options vested and expected to vest, Weighted Average Remaining Contractual Life (Years) Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Options exercisable, Weighted Average Remaining Contractual Life (Years) Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Options outstanding, Aggregate Intrinsic Value Options vested and expected to vest, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Options exercisable, Aggregate Intrinsic Value Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Total intrinsic value of options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted Stock Units (RSUs) Restricted Stock Units R S U [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Restricted stock units Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward Outstanding, Number of Shares, Beginning Balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Number of Shares, RSUs granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Number of Shares, RSUs released Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Number of Shares, RSUs forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Outstanding, Number of Shares, Ending Balance Income taxes. Income taxes. Income Taxes [Table] Income Taxes [Table] Minimum Maximum Income Tax Authority Income Tax Authority [Axis] Income Tax Authority Income Tax Authority [Domain] Federal Domestic Country [Member] State Jurisdictions State And Local Jurisdiction [Member] Income Taxes [Line Items] Income Taxes [Line Items] Provision for income taxes Unrecognized tax benefits Unrecognized Tax Benefits Unrecognized tax benefits recognition impact on income tax rate Unrecognized Tax Benefits That Would Impact Effective Tax Rate Income tax returns examination period. Income tax returns examination period Income Tax Returns Examination Period Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Employee stock options and restricted stock units. Stock options and RSUs Employee Stock Options And Restricted Stock Units [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Shares that were excluded from the computation of diluted weighted average shares outstanding Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Numerator: Net Income Loss [Abstract] Denominator: Weighted Average Number Of Shares Outstanding Diluted Disclosure Items [Abstract] Weighted average shares of common stock (basic) Weighted average shares of common stock (diluted) Per share data: Earnings Per Share Basic And Diluted [Abstract] Basic net loss per share Diluted net loss per share Schedule Of Segment Reporting Information By Segment [Table] Schedule Of Segment Reporting Information By Segment [Table] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] JAPAN JAPAN United States UNITED STATES Other Than United States Non Us [Member] Geographic Concentration Risk Geographic Concentration Risk [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Number of operating segments Number Of Operating Segments Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Schedule Of Entity Wide Information Revenue From External Customers By Products And Services [Table] Cyclo G6. Cyclo G6 Cyclo G Six [Member] Retina. Retina Retina [Member] Other Product And Service Other [Member] Entity Wide Information Revenue From External Customer [Line Items] Entity Wide Information Revenue From External Customer [Line Items] Service Contract Revenues Service [Member] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Europe Europe [Member] Rest of Americas Rest of Americas Rest Of Americas [Member] Asia/Pacific Rim Asia Pacific [Member] Revenues From External Customers And Long Lived Assets [Line Items] Revenues From External Customers And Long Lived Assets [Line Items]