100000 - Document - Document and Entity Information link:presentationLink link:definitionLink link:calculationLink 100010 - Statement - Consolidated Balance Sheets link:presentationLink link:definitionLink link:calculationLink 100020 - Statement - Consolidated Balance Sheets (Parenthetical) link:presentationLink link:definitionLink link:calculationLink 100030 - Statement - Consolidated Statements of Operations link:presentationLink link:definitionLink link:calculationLink 100040 - Statement - Consolidated Statements of Comprehensive Loss link:presentationLink link:definitionLink link:calculationLink 100050 - Statement - Consolidated Statements of Equity link:presentationLink link:definitionLink link:calculationLink 100060 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:definitionLink link:calculationLink 100070 - Disclosure - The Company link:presentationLink link:definitionLink link:calculationLink 100080 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:definitionLink link:calculationLink 100090 - Disclosure - Significant Risks and Uncertainties link:presentationLink link:definitionLink link:calculationLink 100100 - Disclosure - Revenue Recognition link:presentationLink link:definitionLink link:calculationLink 100110 - Disclosure - Cash, Cash Equivalents and Marketable Securities link:presentationLink link:definitionLink link:calculationLink 100120 - Disclosure - Fair Value Measurements link:presentationLink link:definitionLink link:calculationLink 100130 - Disclosure - Inventory link:presentationLink link:definitionLink link:calculationLink 100140 - Disclosure - Property and Equipment, Net link:presentationLink link:definitionLink link:calculationLink 100150 - Disclosure - Leases link:presentationLink link:definitionLink link:calculationLink 100160 - Disclosure - Cloud Computing Arrangement link:presentationLink link:definitionLink link:calculationLink 100170 - Disclosure - Accrued Expenses link:presentationLink link:definitionLink link:calculationLink 100180 - Disclosure - Notes Payable link:presentationLink link:definitionLink link:calculationLink 100190 - Disclosure - Stockholders' Equity link:presentationLink link:definitionLink link:calculationLink 100200 - Disclosure - Net Loss Per Share link:presentationLink link:definitionLink link:calculationLink 100210 - Disclosure - Variable Interest Entity link:presentationLink link:definitionLink link:calculationLink 100220 - Disclosure - Income Taxes link:presentationLink link:definitionLink link:calculationLink 100230 - Disclosure - Warrant Liability link:presentationLink link:definitionLink link:calculationLink 100240 - Disclosure - Stock Based Compensation link:presentationLink link:definitionLink link:calculationLink 100250 - Disclosure - Employee 401(K) Plan link:presentationLink link:definitionLink link:calculationLink 100260 - Disclosure - Commitments and Contingencies link:presentationLink link:definitionLink link:calculationLink 100270 - Disclosure - Restructuring Charges and Other Severance Related Charges link:presentationLink link:definitionLink link:calculationLink 100280 - Disclosure - 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Disclosure - Leases (Tables) link:presentationLink link:definitionLink link:calculationLink 100380 - Disclosure - Cloud Computing Arrangement (Tables) link:presentationLink link:definitionLink link:calculationLink 100390 - Disclosure - Accrued Expenses (Tables) link:presentationLink link:definitionLink link:calculationLink 100400 - Disclosure - Net Loss Per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 100410 - Disclosure - Income Taxes (Tables) link:presentationLink link:definitionLink link:calculationLink 100420 - Disclosure - Stock Based Compensation (Tables) link:presentationLink link:definitionLink link:calculationLink 100430 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:definitionLink link:calculationLink 100440 - Disclosure - Restructuring Charges and Other Related Charges (Tables) link:presentationLink link:definitionLink link:calculationLink 100450 - Disclosure - The Company - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100460 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100470 - Disclosure - Summary of Significant Accounting Policies - Summary of Estimated Useful Lives of Property and Equipment (Details) link:presentationLink link:definitionLink link:calculationLink 100480 - Disclosure - Significant Risks and Uncertainties - Schedule of company's net sales (Details) link:presentationLink link:definitionLink link:calculationLink 100490 - Disclosure - Significant Risks and Uncertainties - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100500 - Disclosure - Revenue Recognition - Summary of Net Sales Disaggregated by Geographic Area (Details) link:presentationLink link:definitionLink link:calculationLink 100510 - Disclosure - Revenue Recognition - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100520 - Disclosure - Cash, Cash Equivalents, and Marketable Securities - Summary of Cash, Cash Equivalents, and Marketable Securities (Details) link:presentationLink link:definitionLink link:calculationLink 100530 - Disclosure - Fair Value Measurements - Summary of Assets and Liabilities Carried at Fair Value (Details) link:presentationLink link:definitionLink link:calculationLink 100540 - Disclosure - Fair Value Measurements - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100550 - Disclosure - Inventory - (Details) link:presentationLink link:definitionLink link:calculationLink 100560 - Disclosure - Inventory - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100570 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment, Net (Details) link:presentationLink link:definitionLink link:calculationLink 100580 - Disclosure - Property and Equipment, Net - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100590 - Disclosure - Leases - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100600 - Disclosure - Leases - Supplemental Balance Sheet Information for Operating Leases (Details) link:presentationLink link:definitionLink link:calculationLink 100610 - Disclosure - Leases - Supplemental Statement of Cash Flows Information for Operating Leases (Details) link:presentationLink link:definitionLink link:calculationLink 100620 - Disclosure - Leases - Future Minimum Lease Payments under Non-Cancellable Operating Leases (Details) link:presentationLink link:definitionLink link:calculationLink 100630 - Disclosure - Leases - Future Minimum Lease Payments under Non-Cancellable Operating Leases (Details)2 link:presentationLink link:definitionLink link:calculationLink 100640 - Disclosure - Leases - Schedule of Future Minimum Lease Payments Under Non-Cancelable Operating leases (Details) link:presentationLink link:definitionLink link:calculationLink 100650 - Disclosure - Cloud Computing Arrangement - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100670 - Disclosure - Cloud Computing Arrangement - Schedule of Other assets, net (Details) link:presentationLink link:definitionLink link:calculationLink 100680 - Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Details) link:presentationLink link:definitionLink link:calculationLink 100690 - Disclosure - Notes Payable - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100700 - Disclosure - Stockholders' Equity (Details) link:presentationLink link:definitionLink link:calculationLink 100710 - Disclosure - Net Loss Per Share - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100720 - Disclosure - Net Loss Per Share - Schedule of Common Stock Equivalents Excluded from Computation of Diluted Loss per Share (Details) link:presentationLink link:definitionLink link:calculationLink 100730 - Disclosure - Net Loss Per Share - Schedule of stock purchase warrants outstanding (Details 2) link:presentationLink link:definitionLink link:calculationLink 100740 - Disclosure - Variable Interest Entity - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100750 - Disclosure - Income Taxes - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100760 - Disclosure - Income Taxes - Components of Loss Before Provision For Income Taxes Domestic and Foreign (Details) link:presentationLink link:definitionLink link:calculationLink 100770 - Disclosure - Income Taxes - Schedule of Income Tax Provision From Continuing Operations (Details) link:presentationLink link:definitionLink link:calculationLink 100780 - Disclosure - Income Taxes - Components of Deferred Income Tax Assets and Liabilities (Details) link:presentationLink link:definitionLink link:calculationLink 100790 - Disclosure - Income Taxes - Reconciliation of Income Tax Provision Computed at Statutory Rates (Details) link:presentationLink link:definitionLink link:calculationLink 100800 - Disclosure - Warrant Liability - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100810 - Disclosure - Stock Based Compensation - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100820 - Disclosure - Stock Based Compensation - Summary of Recognized Stock Compensation for Equity Awards (Details) link:presentationLink link:definitionLink link:calculationLink 100830 - Disclosure - Stock Based Compensation - Summary of Stock Options Granted Activity (Details) link:presentationLink link:definitionLink link:calculationLink 100840 - Disclosure - Stock Based Compensation - Summary of Additional Information about Stock Options (Details) link:presentationLink link:definitionLink link:calculationLink 100841 - Disclosure - Stock Based Compensation - Summary of Restricted Stock Awards Granted Activity (Details) link:presentationLink link:definitionLink link:calculationLink 100842 - Disclosure - Stock Based Compensation - Summary of Restricted Stock and Deferred Stock Units Granted Activity (Details) link:presentationLink link:definitionLink link:calculationLink 100843 - Disclosure - Stock Based Compensation - Summary of Weighted Average Assumptions Used in Valuing Plans (Details) link:presentationLink link:definitionLink link:calculationLink 100844 - Disclosure - Employee 401(K) Plan (Details) link:presentationLink link:definitionLink link:calculationLink 100845 - Disclosure - Commitments and Contingencies - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100846 - Disclosure - Commitments and Contingencies - Schedule of Warrants Issued (Details) link:presentationLink link:definitionLink link:calculationLink 100847 - Disclosure - Restructuring Charges and Other Severance Related Charges - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink 100848 - Disclosure - Restructuring Charges and Other Related Charges - Summary of Restructuring and Other Related Charges (Details) link:presentationLink link:definitionLink link:calculationLink 100849 - Disclosure - Subsequent Events - Additional Information (Details) link:presentationLink link:definitionLink link:calculationLink