Gross Profit Gross profit Other debt issuance costs. Other Debt Issuance Costs Other debt issuance costs Operating Expenses [Abstract] Operating expenses: Asset Class [Domain] Asset Class Operating Income (Loss) Loss from operations Proceeds from stock option exercises and employee stock purchase plan purchases. Proceeds From Stock Options Exercised And Employee Stock Purchase Plan Purchases Proceeds from stock option exercises and employee stock purchase plan purchases Inventory, Finished Goods, Gross, Total Inventory, Finished Goods, Gross Finished goods Entity Emerging Growth Company Entity Emerging Growth Company Income Tax Disclosure [Abstract] Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment Common stock, $0.001 par value; 300,000 shares authorized as of March 31, 2022 and December 31, 2021; 47,712 and 42,241 shares issued and outstanding as of March 31, 2022 and December 31, 2021, respectively Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common Stock, Value, Issued Entity Address, State or Province Entity Address, State or Province Liabilities Total liabilities Disaggregation of Revenue [Table Text Block] Summary of Revenue by Source Inventory, Raw Materials, Gross, Total Raw materials Inventory, Raw Materials, Gross Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Stockholders' Equity, Reverse Stock Split Reverse stock split, description Increase (decrease) in operating lease liabilities. Increase Decrease In Operating Lease Liabilities Operating lease liabilities Class of Stock [Domain] Class of Stock Reversed Stock-Based Compensation Expense Reversed Stock-Based Compensation Expense Reversed Stock-Based Compensation Expense Unrealized loss on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Shares used in computing net loss per share, basic and diluted Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted-average shares of common stock, basic and diluted Redeemable Convertible Preferred Stock [Member] Redeemable Convertible Preferred Stock Redeemable Convertible Preferred Stock, on an as-if Converted Basis Temporary equity adjustment to redemption value on redeemable convertible preferred stock. Temporary Equity Adjustment To Redemption Value On Redeemable Convertible Preferred Stock Temporary equity, Adjustment to redemption value on redeemable convertible preferred stock Increase (decrease) in accrued warranty liability. Increase Decrease In Accrued Warranty Liability Accrued warranty liability Temporary equity deemed dividend on settlement of accrued dividend. Temporary Equity Deemed Dividend On Settlement Of Accrued Dividend Temporary Equity, Deemed dividend on settlement of accrued dividend General and Administrative Expense [Member] General and Administrative Accrued Employee Benefits, Current Accrued compensation and related benefits Restricted cash balance Restricted cash Restricted Cash Restricted Cash, Total Product [Member] Product Revenue Accounts Receivable, after Allowance for Credit Loss, Current, Total Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net Fair Value, Recurring and Nonrecurring [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Contract with Customer, Liability, Revenue Recognized Revenue recognized Other Liabilities, Current, Total Other Liabilities, Current Other City Area Code City Area Code US Treasury Securities [Member] U.S. Treasury securities Revenues [Abstract] Revenue: Commitments and Contingencies Commitments and contingencies (Note 6) Non-cash interest expense. Non Cash Interest Expense Non-cash interest expense Proceeds from Sale, Maturity and Collection of Investments, Total Proceeds from Sale, Maturity and Collection of Investments Sales and maturities of investment securities Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Outstanding Potentially Dilutive Shares were Excluded from Calculation of Diluted Net Loss Per Share Description of business. Description Of Business [Line Items] Description Of Business [Line Items] Schedule of Product Warranty Liability [Table Text Block] Accrued Warranty Liability Stock Issued During Period, Shares, New Issues Issuance of common stock upon initial public offering, net of issuance costs (shares) Stock issued during the period Debt Securities, Available-for-sale, Total Debt Securities, Available-for-sale Aggregate Fair Value Debt Instrument, Basis Spread on Variable Rate Basis spread on variable rate Stock Issued During Period, Shares, Employee Stock Purchase Plans Issuance of common stock through employee stock purchase plan (shares) Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Ending Balance Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Total cash, cash equivalents and restricted cash Stock Issued During Period, Value, Conversion of Convertible Securities Income Statement [Abstract] 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] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Debt Disclosure [Text Block] Term Loan Capital Expenditures Incurred but Not yet Paid Capital expenditures included in accounts payable and accrued expenses General and Administrative Expense, Total General and Administrative Expense General and administrative Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Total Property, Plant and Equipment, Net Property and equipment, net Contract with Customer, Liability, Current Deferred revenue, current Common Stock, Shares, Issued, Total Common Stock, Shares, Issued Common stock, shares issued Statement of Comprehensive Income [Abstract] Debt Securities, Available-for-sale, Amortized Cost Amortized Costs Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Revenue from operating lease arrangements Revenue from Consoles Operating Lease Arrangements Revenue from Consoles Operating Lease Arrangements Security Exchange Name Security Exchange Name Debt Securities Available For Sale Remaining Contractual Maturities Period Remaining contractual maturities for available-for-sale securities Debt Securities Available For Sale Remaining Contractual Maturities period. Statistical Measurement [Domain] Statistical Measurement Debt Disclosure [Abstract] Document Period End Date Document Period End Date Restricted Cash, Noncurrent Restricted cash Income Statement Location [Axis] Income Statement Location Inventory, Work in Process, Gross Work in process Investments [Domain] Investments Common Stock, Shares Authorized Common stock, shares authorized Schedule of cash, cash equivalents and restricted cash. Schedule Of Cash Cash Equivalents And Restricted Cash Table [Text Block] Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Operating Lease, Liability, Current Operating lease liabilities, current Accretion (Amortization) of Discounts and Premiums, Investments Accretion of discount on investments, net Temporary Equity Shares Conversion Of Convertible Redeemable Preferred Stock In to Common Stock Temporary Equity Shares Conversion Of Convertible Redeemable Preferred Stock In to Common Stock Class of Stock [Axis] Class of Stock Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Anti-dilutive shares excluded from calculation of diluted net loss per share Schedule of Long-term Debt Instruments [Table] Debt Instrument [Table] Debt Instrument, Maturity Date Loan maturity date Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for interest Summary of Financial Assets Measured at Fair Value on Recurring Basis by Level within Fair Value Hierarchy Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Inventory, Current [Table Text Block] Schedule of Inventories Current Fiscal Year End Date Current Fiscal Year End Date Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Disaggregation of Revenue [Table] Disaggregation Of Revenue [Table] Assets [Abstract] Assets Stock Issued During Period, Shares, Conversion of Convertible Securities Business Description and Basis of Presentation [Text Block] Description of Business Accounts Payable, Current, Total Accounts Payable, Current Accounts payable Debt Instrument, Name [Domain] Debt Instrument, Name Debt Instrument, Face Amount Principal of term loan Common Stock, Par or Stated Value Per Share Common stock, par value revenue performance obligation 1 revenue performance obligation 1 Revenue performance obligation Shares, Outstanding Ending Balance (shares) Beginning Balance (shares) Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock Additional paid-in capital Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Loss before provision for income taxes Document Type Document Type Preferred stock, $0.001 par value; 5,000 shares authorized, and no shares issued and outstanding as of March 31, 2022 and December 31, 2021 Preferred Stock, Value, Issued, Ending Balance Preferred Stock, Value, Issued, Beginning Balance Preferred Stock, Value, Issued, Total Preferred Stock, Value, Issued Operating Lease, Liability, Noncurrent Operating lease liabilities, noncurrent Consumables product. Consumables Product [Member] Consumables Product Assets, Current Total current assets Disaggregation of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Share-based Payment Arrangement [Policy Text Block] Stock-Based Compensation Expense Share-based Payment Arrangement, Option [Member] Stock Option Income Tax Expense (Benefit), Total Income Tax Expense (Benefit) Provision for income taxes Service and other revenue. Service And Other Revenue [Member] Service and Other Revenue Increase (Decrease) in Deferred Revenue Deferred revenue Net loss per share, basic and diluted Earnings Per Share, Basic and Diluted, Total Earnings Per Share, Basic and Diluted Net loss per share attributable to common stockholders, basic and diluted Antidilutive Securities [Axis] Antidilutive Securities Temporary equity settlement of accrued dividend. Temporary Equity Settlement Of Accrued Dividends Temporary Equity, Issuance of common stock on settlement of accrued dividend Provision for inventories. Provision For Inventories Provision for inventories Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Temporary equity stock issued during period shares new issues. Temporary Equity Stock Issued During Period Shares New Issues Temporary Equity, Issuance of Series E redeemable convertible preferred stock, net of issuance costs (shares) Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Cash cash equivalents, restricted cash and short term investments. Cash Cash Equivalents Restricted Cash And Short Term Investments Cash, cash equivalents, restricted cash and short-term investments Plan Name Plan Name [Axis] Underwriters. Underwriters [Member] Underwriters Operating Expenses Total operating expenses IPO [Member] IPO Employees share purchase plan. Employees Share Purchase Plan [Member] Employees Share Purchase Plan (ESPP) Inventory, Net Inventories Total inventories Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Gross Unrealized Holding Losses Net Cash Provided by (Used in) Operating Activities [Abstract] Cash flows from operating activities: Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Holding Gains Earnings Per Share [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Description Stock options, description Net Income (Loss) Attributable to Parent Net loss Net loss Net loss Increase (Decrease) in Prepaid Expenses, Other Prepaid expenses and other assets Research and Development Expense [Member] Research and Development Document Fiscal Period Focus Document Fiscal Period Focus Temporary Equity, Stock Issued During Period, Value, New Issues Temporary Equity, Issuance of Series E redeemable convertible preferred stock, net of issuance costs Accounting Policies [Abstract] Accrued research and development expenses. Accrued Research And Development Expenses Accrued research and development expenses Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive (loss) income Entity Address, Address Line One Entity Address, Address Line One Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock options outstanding Balance Sheet Components Balance Sheet Components [Abstract] Liabilities, Current Total current liabilities Commercial Paper [Member] Commercial paper Entity Address, Postal Zip Code Entity Address, Postal Zip Code Product and Service [Domain] Product and Service Debt instrument principal payment term after interest only period expires. Debt Instrument Principal Payment Term After Interest Only Period Expires Debt instrument principal repayment period Temporary Equity, Carrying Amount, Attributable to Parent Temporary Equity, Ending Balance Temporary Equity, Beginning Balance Stock options to purchase common stock. Stock Options To Purchase Common Stock [Member] Stock Options to Purchase Common Stock Proceeds from Issuance Initial Public Offering Aggregate net proceeds from IPO Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative Net Cash Provided by (Used in) Operating Activities Net cash used in operating activities Debt instrument interest only payments year and month. Debt Instrument Interest Only Payments Year And Month Debt instrument interest only payments end date Earned units vesting percentage Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Percentage Vested In Period Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Percentage Vested In Period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cash, cash equivalents and restricted cash as of end of period Cash, cash equivalents and restricted cash as of beginning of period Equity Components [Axis] Equity Components Assets, Current [Abstract] Current assets: Entity Registrant Name Entity Registrant Name Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Cost of Revenue [Abstract] Cost of revenue: Entity Interactive Data Current Entity Interactive Data Current Prime Rate [Member] Prime Rate Entity Address, City or Town Entity Address, City or Town Supplemental Balance Sheet Disclosures [Text Block] Balance Sheet Components Trading Symbol Trading Symbol Net Cash Provided by (Used in) Investing Activities [Abstract] Cash flows from investing activities: Two thousand twenty equity incentive plan. Two Thousand Twenty Equity Incentive Plan [Member] 2020 Equity Incentive Plan Short-term Investments [Member] Short-term investments Local Phone Number Local Phone Number Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Total stockholders' equity Non-cash lease expense. Non Cash Lease Expense Non-cash lease expense Entity Bankruptcy Proceedings, Reporting Current Entity Bankruptcy Proceedings, Reporting Current Preferred Stock, Shares Issued, Total Preferred Stock, Shares Issued Preferred stock, shares issued Statistical Measurement [Axis] Statistical Measurement Entity Small Business Entity Small Business Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Organization, Consolidation and Presentation of Financial Statements [Abstract] Share Price Share price Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total APIC, Share-based Payment Arrangement, Increase for Cost Recognition Stock-based compensation expense Long-term Debt, Excluding Current Maturities Term loan, noncurrent Total term loan, noncurrent Variable Rate [Axis] Variable Rate Selling and Marketing Expense [Member] Sales and Marketing Variable Rate [Domain] Variable Rate Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period Number of common stock issued Stock Issued During Period, Value, Stock Dividend Issuance of common stock on settlement of accrued dividend Accrued expenses and other current liabilities. Accrued Expenses And Other Current Liabilities Accrued expenses and other current liabilities Total accrued expenses and other current liabilities Sale of Stock [Domain] Sale of Stock Revenue from Contract with Customer [Abstract] Plan Name [Domain] Plan Name Yankee debt securities. Yankee Debt Securities [Member] Yankee debt securities Issuance of common stock upon initial public offering, net of issuance costs Stock Issued During Period, Value, New Issues Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Interest Expense, Total Interest Expense Interest expense Debt Instrument, Unamortized Discount, Total Debt Instrument, Unamortized Discount Debt discount on Perceptive Term Loan Unamortized debt discount Stock issued during period shares stock dividend. Stock Issued During Period Shares Stock Dividend Issuance of common stock on settlement of accrued dividend (shares) Share-based Payment Arrangement, Noncash Expense, Total Share-based Payment Arrangement, Noncash Expense Stock-based compensation expense Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Change in fair value of redeemable convertible preferred stock warrant liability. Change In Fair Value Of Redeemable Convertible Preferred Stock Warrant Liability Change in fair value of redeemable convertible preferred stock warrant liability Change in fair value of redeemable convertible preferred stock warrant liability Inventory Disclosure [Abstract] Warrants to purchase common stock. Warrants To Purchase Common Stock [Member] Warrant to Purchase Common Stock Equity Incentive Plan [Table] Equity Incentive Plan [Table] Equity Incentive Plan [Table] Accrued interest, noncurrent. Accrued Interest Noncurrent Accrued interest, noncurrent Net Cash Provided by (Used in) Financing Activities Net cash provided by financing activities Commitments and Contingencies Disclosure [Abstract] Assets Total assets Fair Value, Inputs, Level 2 [Member] Level 2 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock option exercises (shares) Increase (Decrease) in Employee Related Liabilities, Total Increase (Decrease) in Employee Related Liabilities Accrued payroll and related benefits Statement [Line Items] Statement [Line Items] Liabilities and Equity Total liabilities and stockholders' equity Document Quarterly Report Document Quarterly Report Statement of Cash Flows [Abstract] Accrued expenses and other current liabilities. Schedule Of Accrued Expenses And Other Current Liabilities Table [Text Block] Accrued Expenses and Other Current Liabilities Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Recognized in Earnings Other-than-temporary impairment losses related to investments Additional Paid-in Capital [Member] Additional Paid-in Capital Title of 12(b) Security Title of 12(b) Security Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive loss Equity Incentive Plan [Line Items] Equity Incentive Plan [Line Items] Equity Incentive Plan [Line Items] Debt Instrument [Line Items] Debt Instrument [Line Items] Other non-cash items Other non-cash items Other non-cash items Award Type [Domain] Award Type Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Supplemental Cash Flow Elements [Abstract] Supplemental cash flow disclosures: Fair Value, Inputs, Level 1 [Member] Level 1 Share based compensation arrangement by share based payment award vesting period month and year. Share Based Compensation Arrangement By Share Based Payment Award Vesting Period Month And Year Award vesting period, month and year Schedule Of Cash And Cash Equivalents And Restricted Cash Cash, Cash Equivalents and Restricted Cash Cash, cash equivalents and restricted cash Accrued inventory current. Accrued Inventory Current Accrued inventory Interest income and other income, net Nonoperating Income (Expense), Total Nonoperating Income (Expense) Corporate Debt Securities [Member] Corporate debt Percentage of restricted stock issued to CEO Share Based Compensation Arrangement By Share Based Payment Award Shares Percentage of Issued In Period To CEO Share Based Compensation Arrangement By Share Based Payment Award Shares Percentage of Issued In Period To CEO. Entity Current Reporting Status Entity Current Reporting Status Revenue from Contract with Customer [Text Block] Revenue and Deferred Revenue Investment Type [Axis] Investment Type Revenue, Remaining Performance Obligation, Amount Remaining performance obligations Noncash Investing and Financing Items [Abstract] Supplemental non-cash investing and financing activities: Money Market Funds [Member] Money market funds PSUs Performance Stock Units Performance Shares [Member] Income Taxes Paid Cash paid for income taxes Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Summary of Stock-based Compensation Expense Adjustments to Additional Paid in Capital, Increase in Carrying Amount of Redeemable Preferred Stock Adjustment to redemption value on redeemable convertible preferred stock AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Income Statement Location [Domain] Income Statement Location Preferred Stock, Shares Authorized Preferred stock, shares authorized Minimum [Member] Minimum Cash and Cash Equivalents [Abstract] Measurement Frequency [Domain] Measurement Frequency Stock Issued During Period, Value, Stock Options Exercised Stock option exercises Schedule of Debt [Table Text Block] Schedule of Term Loan Percentage of restricted stock issued to other executive officers Share Based Compensation Arrangement By Share Based Payment Award Shares Percentage of Issued In Period To Executive officers Share Based Compensation Arrangement By Share Based Payment Award Shares Percentage of Issued In Period To Executive officers. Temporary Equity Cash Exercises Of Redeemable Convertible Preferred Stock Warrants Shares Temporary Equity Cash Exercises Of Redeemable Convertible Preferred Stock Warrants Shares Debt Instrument, Payment Terms Description of payment terms Net Cash Provided by (Used in) Financing Activities [Abstract] Cash flows from financing activities: Debt Instrument [Axis] Debt Instrument Entity Filer Category Entity Filer Category Document Fiscal Year Focus Document Fiscal Year Focus Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Securities in unrealized loss position for more than 12 months Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit) Accumulated deficit Accumulated deficit Income Tax Disclosure [Text Block] Income Taxes Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares Stock options, nonvested, number of shares Entity Ex Transition Period Entity Ex Transition Period Fair Value Disclosures [Abstract] Maximum [Member] Maximum Cash paid for amounts included in the measurement of operating lease liabilities. Cash Paid For Amounts Included In Measurement Of Operating Lease Liabilities Cash paid for amounts included in the measurement of operating lease liabilities Entity Central Index Key Entity Central Index Key Temporary Equity Conversion Of Convertible Redeemable Preferred Stock In to Common Stock Temporary Equity Conversion Of Convertible Redeemable Preferred Stock In to Common Stock Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash, Cash Equivalents and Restricted Cash Payables and Accruals [Abstract] Transfer of inventories to property and equipment. Transfer Of Inventories To Property And Equipment Transfer of inventories to property and equipment Entity Tax Identification Number Entity Tax Identification Number Equity Component [Domain] Equity Component Preferred Stock, Par or Stated Value Per Share Preferred stock, par value Loss on extinguishment of term loan Loss on extinguishment of term loan Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt, Total Stockholders' Equity Note, Stock Split, Conversion Ratio Stock split conversion ratio Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid Debt instrument, final payment amount Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Estimated weighted average period over which unamortized share-based compensation are expected to be recognize Conversion of Series A redeemable convertible preferred stock warrants to common stock warrants Conversion Of Redeemable Convertible Preferred Stock Warrants To Common Stock Warrants Value Conversion Of Redeemable Convertible Preferred Stock Warrants To Common Stock Warrants Value Increase (Decrease) in Accounts Receivable Accounts receivable Operating lease arrangements. Operating Lease Arrangements [Member] Operating Lease Arrangements Statement [Table] Statement [Table] Cash Equivalents [Member] Cash equivalents Entity File Number Entity File Number Retained Earnings [Member] Accumulated Deficit Consoles product. Consoles Product [Member] Consoles Product Description of business. Description Of Business [Table] Description Of Business [Table] Revenue from Contract with Customer, Excluding Assessed Tax, Total Revenue from Contract with Customer, Excluding Assessed Tax Revenue Increase (Decrease) in Accounts Payable, Total Increase (Decrease) in Accounts Payable Accounts payable Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Liabilities, Current [Abstract] Current liabilities: Share-based Payment Arrangement [Text Block] Equity Incentive Plan Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock [Member] Common Stock Accrued Professional Fees, Current Accrued professional services Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Cover [Abstract] Asset Class [Axis] Asset Class Temporary Equity, Shares Outstanding Temporary Equity, Ending Balance (shares) Temporary Equity, Beginning Balance (shares) Statement of Stockholders' Equity [Abstract] Stock Issued During Period, Shares, Restricted Stock Award, Gross Issuance of common stock for settlement of RSUs (shares) Share-based Payment Arrangement [Abstract] RSUs Restricted Stock Units (RSUs) [Member] Restricted Stock Units Cash, Cash Equivalents, and Short-term Investments, Total Cash, Cash Equivalents, and Short-term Investments Cash, cash equivalents and short-term investments Silicon valley bank term loan. Silicon Valley Bank Term Loan [Member] SVB Term Loan Document Transition Report Document Transition Report Research and Development Expense, Total Research and Development Expense Research and development Contract with Customer, Liability, Noncurrent Deferred revenue, noncurrent Cost of Goods and Services Sold, Total Cost of Goods and Services Sold Cost of revenue Share-based Payment Arrangement, Expense Cumulative stock-based compensation Stock-based compensation expense Offering costs, underwriting discounts and commissions expenses. Offering Costs Underwriting Discounts And Commissions Expenses Offering costs, underwriting discounts and commissions expenses Warrants to purchase redeemable convertible preferred stock. Warrants To Purchase Redeemable Convertible Preferred Stock [Member] Warrants to Purchase Redeemable Convertible Preferred Stock Statement of Financial Position [Abstract] Depreciation, Depletion and Amortization, Total Depreciation, Depletion and Amortization Depreciation and amortization Product Warranty Accrual, Current Balance at the end of the period Balance at the beginning of the period Accrued warranty liability Deemed dividend on settlement of accrued dividend. Deemed Dividend On Settlement Of Accrued Dividend Deemed dividend on settlement of accrued dividend Deemed dividend on settlement of accrued dividend Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Selling and Marketing Expense, Total Selling and Marketing Expense Sales and marketing Percentage of limitation on pledges of capital stock of foreign subsidiaries. Percentage Of Limitation On Pledges Of Capital Stock Of Foreign Subsidiaries Percentage of limitation on pledges of capital stock of foreign subsidiaries Temporary Equity Cash Exercises Of Redeemable Convertible Preferred Stock Warrants Value Temporary Equity Cash Exercises Of Redeemable Convertible Preferred Stock Warrants Value Payments to Acquire Investments, Total Payments to Acquire Investments Purchases of investment securities Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders Increase (Decrease) in Inventories, Total Increase (Decrease) in Inventories Inventories Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Common Stock, Capital Shares Reserved for Future Issuance Common stock shares reserved for issuance Measurement Frequency [Axis] Measurement Frequency Reclassifications of Temporary to Permanent Equity Award Type [Axis] Award Type Entity Shell Company Entity Shell Company Liabilities and Equity [Abstract] Liabilities and stockholders' equity Debt Instrument, Interest Rate, Effective Percentage Debt interest rate Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Stock Issued During Period, Value, Employee Stock Purchase Plan Issuance of common stock through employee stock purchase plan Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of common stock for settlement of RSUs Net Loss Per Share Earnings Per Share [Text Block] Amendment Flag Amendment Flag Product and Service [Axis] Product and Service Short-term Investments, Total Short-term Investments Short-term investments Accrued rebate Accrued Exchange Fee Rebate, Current Cash and Cash Equivalents, at Carrying Value, Ending Balance Cash and Cash Equivalents, at Carrying Value, Beginning Balance Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents New Accounting Pronouncements, Policy [Policy Text Block] Recently Adopted Accounting Pronouncements and Recently Issued Accounting Pronouncements Not Yet Adopted Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Unamortized stock-based compensation expense amount Debt instrument prepayment fee percentage. Debt Instrument Prepayment Fee Percentage Debt instrument prepayment fee percentage Fair Value, Recurring [Member] Fair Value, Recurring Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Accrued expenses and other current liabilities Follow-On Public Offering [Member] Follow On Public Offering [Member] Follow-on Public Offering Stock Issued During Period Share Redeemable Convertible Preferred Stock Warrants Stock Issued During Period Share Redeemable Convertible Preferred Stock Warrants Issuance of common stock upon net exercises of Series B redeemable convertible preferred stock warrants Antidilutive Securities, Name [Domain] Antidilutive Securities, Name Other Assets, Noncurrent, Total Other Assets, Noncurrent Other assets Employee Stock [Member] Shares Committed under ESPP Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Percentage of fair market value of common stock Cost of Sales [Member] Cost of Revenue Sale of Stock [Axis] Sale of Stock Fair Value Disclosures [Text Block] Fair Value Measurements Proceeds from issuance of common stock upon follow-on public offering, net of issuance costs Proceeds from Issuance of Common Stock