0001001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - The Company and Nature of Business link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - The Company and Nature of Business (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 2305301 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 2406402 - Disclosure - Summary of Significant Accounting Policies - Segments (Details) link:presentationLink link:calculationLink link:definitionLink 2407403 - Disclosure - Summary of Significant Accounting Policies - Liquidity (Details) link:presentationLink link:calculationLink link:definitionLink 2408404 - Disclosure - Summary of Significant Accounting Policies - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 2409405 - Disclosure - Summary of Significant Accounting Policies - Impairment of Long-Lived Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2410406 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition (Details) link:presentationLink link:calculationLink link:definitionLink 2411407 - Disclosure - Summary of Significant Accounting Policies - Warranty Program (Details) link:presentationLink link:calculationLink link:definitionLink 2412408 - Disclosure - Summary of Significant Accounting Policies - Advertising Expenditures (Details) link:presentationLink link:calculationLink link:definitionLink 2113103 - Disclosure - Marketable Securities link:presentationLink link:calculationLink link:definitionLink 2314302 - Disclosure - Marketable Securities (Tables) link:presentationLink link:calculationLink link:definitionLink 2415409 - Disclosure - Marketable Securities (Details) link:presentationLink link:calculationLink link:definitionLink 2116104 - Disclosure - Fair Value Measurement link:presentationLink link:calculationLink link:definitionLink 2317303 - Disclosure - Fair Value Measurement (Tables) link:presentationLink link:calculationLink link:definitionLink 2418410 - Disclosure - Fair Value Measurement - Marketable Securities Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 2119105 - Disclosure - Balance Sheet Components link:presentationLink link:calculationLink link:definitionLink 2320304 - Disclosure - Balance Sheet Components (Tables) link:presentationLink link:calculationLink link:definitionLink 2421411 - Disclosure - Balance Sheet Components - Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 2422412 - Disclosure - Balance Sheet Components - Accrued Liabilities and Other (Details) link:presentationLink link:calculationLink link:definitionLink 2123106 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 2324305 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 2425413 - Disclosure - Commitments and Contingencies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2426414 - Disclosure - Commitments and Contingencies - Aggregate Future Minimum Lease Payments (Details) link:presentationLink link:calculationLink link:definitionLink 2127107 - Disclosure - Borrowings link:presentationLink link:calculationLink link:definitionLink 2328306 - Disclosure - Borrowings (Tables) link:presentationLink link:calculationLink link:definitionLink 2429415 - Disclosure - Borrowings - Summary of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 2429415 - Disclosure - Borrowings - Summary of Borrowings (Details) link:presentationLink link:calculationLink link:definitionLink 2430416 - Disclosure - Borrowings - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2431417 - Disclosure - Borrowings - Annual Future Minimum Principal Payments (Details) link:presentationLink link:calculationLink link:definitionLink 2132108 - Disclosure - Warrants link:presentationLink link:calculationLink link:definitionLink 2333307 - Disclosure - Warrants (Tables) link:presentationLink link:calculationLink link:definitionLink 2434418 - Disclosure - Warrants - Issued and Outstanding (Details) link:presentationLink link:calculationLink link:definitionLink 2135109 - Disclosure - Common and Preferred Stock link:presentationLink link:calculationLink link:definitionLink 2436419 - Disclosure - Common and Preferred Stock - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2137110 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 2338308 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 2439420 - Disclosure - Stock-Based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2440421 - Disclosure - Stock-Based Compensation - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2441422 - Disclosure - Stock-Based Compensation - Outstanding Options and Exercisable Options Information by Range of Exercise Prices (Details) link:presentationLink link:calculationLink link:definitionLink 2442423 - Disclosure - Stock-Based Compensation - Valuation Assumptions for Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 2443424 - Disclosure - Stock-Based Compensation - Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2444425 - Disclosure - Stock-Based Compensation - Valuation Assumptions for ESPP Purchase Rights (Details) link:presentationLink link:calculationLink link:definitionLink 2445426 - Disclosure - Stock-Based Compensation - Stock-Based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 2146111 - Disclosure - Employee Benefit Plan link:presentationLink link:calculationLink link:definitionLink 2447427 - Disclosure - Employee Benefit Plan (Details) link:presentationLink link:calculationLink link:definitionLink 2148112 - Disclosure - Net Loss Per Share of Common Stock link:presentationLink link:calculationLink link:definitionLink 2349309 - Disclosure - Net Loss Per Share of Common Stock (Tables) link:presentationLink link:calculationLink link:definitionLink 2450428 - Disclosure - Net Loss Per Share of Common Stock - Schedule of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2451429 - Disclosure - Net Loss Per Share of Common Stock - Antidilutive Securities Excluding from Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 2152113 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 2353310 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2454430 - Disclosure - Income Taxes - Components of Loss Before Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2455431 - Disclosure - Income Taxes - Components of Deferred Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 2456432 - Disclosure - Income Taxes - Reconciliation of Effective Income Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 2457433 - Disclosure - Income Taxes - Temporary Differences and Carryforwards and Deferred Tax Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2458434 - Disclosure - Income Taxes - Changes in Valuation Allowance (Details) link:presentationLink link:calculationLink link:definitionLink 2459435 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2460436 - Disclosure - Income Taxes - Uncertain Income Tax Positions (Details) link:presentationLink link:calculationLink link:definitionLink 2161114 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 2462437 - Disclosure - Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink