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Disclosure - Significant Transactions - Schedule of Allocation of Net Proceeds on Fair Value Basis (Details) link:presentationLink link:calculationLink link:definitionLink 100440 - Disclosure - Significant Transactions - Schedule of Preliminary Allocation of Purchase Price (Details) link:presentationLink link:calculationLink link:definitionLink 100450 - Disclosure - Related Party - Topcon - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100460 - Disclosure - Fair Value Measurement - Financial Assets and Liabilities Measured and Recognized at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 100470 - Disclosure - Inventories - Components of Inventories (Details) link:presentationLink link:calculationLink link:definitionLink 100480 - Disclosure - Property and Equipment - Component of Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 100490 - Disclosure - Property and Equipment - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Goodwill - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100510 - Disclosure - Intangible Assets - Components of Purchased Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 100520 - Disclosure - Intangible Assets - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100530 - Disclosure - Intangible Assets - Estimated Future Amortization Expense for Purchased Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 100540 - Disclosure - Accrued Expenses and Other Current Liabilities - Components of Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 100550 - Disclosure - Paycheck Protection Program ("PPP") Loan - 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Disclosure - Stockholders' Equity - Summary of Activity in Stock Option Plan (Details) link:presentationLink link:calculationLink link:definitionLink 100630 - Disclosure - Stockholders' Equity - Stock Options Outstanding and Exercisable (Details) link:presentationLink link:calculationLink link:definitionLink 100640 - Disclosure - Stockholders' Equity - Weighted Average Assumptions for Fair Value of Options Granted (Details) link:presentationLink link:calculationLink link:definitionLink 100650 - Disclosure - Stockholders' Equity - Stock Options Outstanding, Exercisable and Expected to Vest (Details) link:presentationLink link:calculationLink link:definitionLink 100660 - Disclosure - Stockholders' Equity - Restricted Stock Units Outstanding, Vested and Expected to Vest (Details) link:presentationLink link:calculationLink link:definitionLink 100670 - Disclosure - Stockholders' Equity - Restricted Stock Units and Awards (Details) link:presentationLink link:calculationLink link:definitionLink 100680 - Disclosure - Employee Benefit Plan - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100690 - Disclosure - Income Taxes - Loss from Operations Before Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 100700 - Disclosure - Income Taxes - Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 100710 - Disclosure - Income Taxes - Effective Tax Rate Differs from the Statutory Federal Income Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 100720 - Disclosure - Income Taxes - Tax Effect of Temporary Differences and Carryforwards that Give Rise to Significant Portions of the Net Deferred Tax Assets (Details) link:presentationLink link:calculationLink link:definitionLink 100730 - Disclosure - Income Taxes - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 100740 - Disclosure - 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Disclosure - Computation of Basic and Diluted Net Loss Per Common Share - Reconciliation of Numerator and Denominator of Basic and Diluted Net Income Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 100810 - Disclosure - Computation of Basic and Diluted Net Loss Per Common Share - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink