101 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 103 - Statement - Condensed Balance Sheets link:calculationLink link:presentationLink link:definitionLink 104 - Statement - Condensed Balance Sheets (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 105 - Statement - Condensed Statements of Operations and Comprehensive Loss link:calculationLink link:presentationLink link:definitionLink 106 - Statement - Condensed Statements of Operations and Comprehensive Loss (Parenthetical) link:calculationLink link:presentationLink link:definitionLink 107 - Statement - Condensed Statement of Cash Flows link:calculationLink link:presentationLink link:definitionLink 108 - Disclosure - Organization and Nature of Business link:calculationLink link:presentationLink link:definitionLink 109 - Disclosure - Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 110 - Disclosure - 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Disclosure - Summary of Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 120 - Disclosure - Balance Sheet Components (Tables) link:calculationLink link:presentationLink link:definitionLink 121 - Disclosure - Debt and Related Warrants (Tables) link:calculationLink link:presentationLink link:definitionLink 122 - Disclosure - Redeemable Convertible Preferred Stock and Stockholders' Deficit (Tables) link:calculationLink link:presentationLink link:definitionLink 123 - Disclosure - Stock-Based Compensation (Tables) link:calculationLink link:presentationLink link:definitionLink 124 - Disclosure - Net Loss Per Common Share (Tables) link:calculationLink link:presentationLink link:definitionLink 125 - Disclosure - Organization and Nature of Business - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 126 - Disclosure - Summary of Significant Accounting Policies - Schedule of Revenue and Accounts Receivable for Each Significant Customer (Detail) link:calculationLink link:presentationLink link:definitionLink 127 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 128 - Disclosure - Summary of Significant Accounting Policies - Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) link:calculationLink link:presentationLink link:definitionLink 129 - Disclosure - Summary of Significant Accounting Policies - Schedule of Change in Fair Value of Liability (Detail) link:calculationLink link:presentationLink link:definitionLink 130 - Disclosure - Summary of Significant Accounting Policies - Schedule of Assumptions Used in Valuation of Redeemable Convertible Preferred Stock Warrants (Detail) link:calculationLink link:presentationLink link:definitionLink 131 - Disclosure - Balance Sheet Components - Schedule of Inventory (Detail) link:calculationLink link:presentationLink link:definitionLink 132 - Disclosure - Balance Sheet Components - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 133 - Disclosure - Balance Sheet Components - Schedule of Intangible Assets (Detail) link:calculationLink link:presentationLink link:definitionLink 134 - Disclosure - Balance Sheet Components - Schedule of Accrued Liabilities (Detail) link:calculationLink link:presentationLink link:definitionLink 135 - Disclosure - Commitments and Contingencies - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 136 - Disclosure - Debt and Related Warrants - Warrants - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 137 - Disclosure - Debt and Related Warrants - 2015 Facility - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 138 - Disclosure - Debt and Related Warrants - Summary of 2015 Credit Facility (Detail) link:calculationLink link:presentationLink link:definitionLink 139 - Disclosure - Debt and Related Warrants - Summary of Principal Repayments of 2015 Credit Facility (Detail) link:calculationLink link:presentationLink link:definitionLink 140 - Disclosure - Debt and Related Warrants - Capital Lease Obligations (Detail) link:calculationLink link:presentationLink link:definitionLink 141 - Disclosure - Redeemable Convertible Preferred Stock and Stockholders' Deficit - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 142 - Disclosure - Redeemable Convertible Preferred Stock and Stockholders' Deficit - Schedule of Authorized, Issued and Outstanding Redeemable Convertible Preferred Stock (Detail) link:calculationLink link:presentationLink link:definitionLink 143 - Disclosure - Redeemable Convertible Preferred Stock and Stockholders' Deficit - Summary of Common Stock Reserved for Future Issuance (Detail) link:calculationLink link:presentationLink link:definitionLink 144 - Disclosure - Stock-Based Compensation - Summary of Stock Option Activity (Detail) link:calculationLink link:presentationLink link:definitionLink 145 - Disclosure - Stock-Based Compensation - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 146 - Disclosure - Stock-Based Compensation - Summary of Stock-Based Compensation Expense (Detail) link:calculationLink link:presentationLink link:definitionLink 147 - Disclosure - Stock-Based Compensation - Schedule of Fair Value of Employee Stock Options (Detail) link:calculationLink link:presentationLink link:definitionLink 148 - Disclosure - Related Party Transactions - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink 149 - Disclosure - Net Loss Per Common Share - Computation of Basic and Diluted Net Loss Per Share (Detail) link:calculationLink link:presentationLink link:definitionLink 150 - Disclosure - Net Loss Per Common Share - Schedule of Potentially Dilutive Securities Excluded from Diluted Net Loss Per Common Share (Detail) link:calculationLink link:presentationLink link:definitionLink 151 - Disclosure - Subsequent Events - Additional Information (Detail) link:calculationLink link:presentationLink link:definitionLink