Entity Address City Or Town Entity Address, City or Town Entity Ex Transition Period Entity Ex Transition Period Net Income Loss Available To Common Stockholders Basic Net loss Net Income (Loss) Available to Common Stockholders, Basic, Total Earnings Per Share [Abstract] Net loss per share: Schedule Of Accrued Liabilities Table [Text Block] Schedule of Accrued Liabilities Common stock issued Stock Issued During Period, Value, New Issues Aggregate amount offered, issuance and sale by the Company Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate Dividends Increase Decrease In Other Operating Capital Net Other Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total Amendment Flag Amendment Flag Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Total Fair Value Total fair value of restricted stock awards vested Fair value of restricted stock units vested Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value Subsequent Event Type [Domain] Finite Lived Intangible Assets Accumulated Amortization Accumulated Amortization Cost Of Sales [Member] Cost of Sales Exercise Price $6.07 - $7.08 Exercise Price Range Four [Member] Exercise price range four. Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items] Schedule Of Finite Lived Intangible Assets Table [Text Block] Components of Intangible Assets Document Quarterly Report Document Quarterly Report Statement [Table] Statement [Table] Operating Lease Liability Noncurrent Long-term operating lease liabilities Operating Lease Lease Income Table [Text Block] Schedule of Lease Revenue Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Cancelled. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Cancelled Cancelled Stock Option Equity Option [Member] Accrued customer advances. Accrued Customer Advances Customer advances Shares of common stock have been issued to employees Issuance of common stock under the 2020 ESPP, Shares Service [Member] Service Other Noncurrent Liabilities [Member] Other Long-Term Liabilities Preferred Stock Shares Outstanding Preferred stock, shares outstanding Preferred Stock, Shares Outstanding, Beginning Balance Preferred Stock, Shares Outstanding, Ending Balance Common Stock Capital Shares Reserved For Future Issuance Common stock reserved for issuance Non-vested at March 31, 2023 Non-vested at December 31, 2022 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Restricted stock awards vested Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Options cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total Product Or Service [Axis] Product and Service Contract with Customer, Asset, Reclassified to Receivable Payments received Employee Stock [Member] 2020 Employee Stock Purchase Plan Finite Lived Intangible Asset Useful Life Intangible assets estimated useful life Exercise Price $3.05 - $5.95 Exercise Price Range Two [Member] Exercise price range two. Employee Related Liabilities Current Compensation Employee-related Liabilities, Current, Total Other geographical region. Other Geographical Region [Member] Other Exercise price range (lower) Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Employee Stock Option [Member] Stock Options Outstanding Stock Options Liabilities And Stockholders Equity Total liabilities and stockholders’ equity Plan Name [Domain] Plan Name Weighted Average Number Of Shares Outstanding [Abstract] Weighted-average number of shares used in calculation of net loss per share: Inventory Raw Materials Raw Materials Entity Incorporation State Country Code Entity Incorporation, State or Country Code Income Statement [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Exercise Price Vested and exercisable at March 31, 2022, Weighted Average Exercise Price 2023 Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization remainder of fiscal year. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Remainder Of Fiscal Year Sale Of Stock Name Of Transaction [Domain] Sale of Stock Exercise price range (upper) Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Liabilities Current Total current liabilities Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total Contract with Customer, Asset, after Allowance for Credit Loss, Current Contract asset, current At the market offering. At The Market Offering [Member] ATM offerings Stock Issued During Period Value Employee Stock Purchase Plan Issuance of common stock under the 2020 ESPP Earnings Per Share Basic [Line Items] Earnings Per Share Basic [Line Items] Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent, Total Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Contract asset, long-term Share Based Compensation Award Tranche Two [Member] Share-based Payment Arrangement, Tranche Two Aggregate purchase price of shares Aggregate Purchase Price Of Shares Aggregate purchase price of shares. Warrants to purchase aggregate shares of common stock Stock And Warrants Issued During Period Shares Common Stock And Warrants Stock and warrants issued during period shares common stock and warrants. Accounts Payable And Accrued Liabilities Disclosure [Text Block] Accrued Liabilities Income Tax Policy [Text Block] Income Taxes Allowance For Notes And Loans Receivable Noncurrent Notes and other receivables, long-term, allowance Increase Decrease In Contract With Customer Liability Billings not yet recognized as revenue Preferred Stock Shares Authorized Preferred stock, shares authorized Other Noncurrent Assets [Member] Other Assets Share based compensation arrangement by share based payment award equity instruments other than options vested and expected to vest outstanding number. Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested And Expected To Vest Outstanding Number Number of restricted stock awards are expected to vest Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Entity Small Business Entity Small Business Intangible Assets Disclosure [Text Block] Intangible Assets Contingent milestone payments upon commercialization. Contingent Milestone Payments Upon Commercialization Contingent additional milestone payments upon commercialization Assets Current Total current assets Contract With Customer Asset And Liability Table [Text Block] Summary of Information about Receivables and Contract Liabilities from Contracts with Customers Weighted average number of shares of common stock basic Weighted Average Number Of Shares Outstanding Basic Basic Weighted Average Number of Shares Outstanding, Basic, Total Stock Issued During Period Shares Restricted Stock Award Forfeited Restricted stock awards cancelled City Area Code City Area Code Outstanding at March 31, 2023, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Business Description And Basis Of Presentation [Text Block] Overview and Basis of Presentation Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Liabilities Total liabilities Document Period End Date Document Period End Date Restricted Stock [Member] Restricted Stock Awards Restricted Stock Awards Share Based Compensation Arrangement By Share Based Payment Award Percentage Of Outstanding Stock Maximum Percentage of outstanding shares of common stock Schedule Of Finite Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value Weighted average grant date fair value of options granted Share Based Compensation Award Tranche One [Member] Share-based Payment Arrangement, Tranche One Contract With Customer Liability Noncurrent Contract liability, non-current 2024 Finite Lived Intangible Assets Amortization Expense Next Twelve Months Range [Axis] Statistical Measurement Trademarks [Member] Acquired Trademarks Subsequent Event [Line Items] Finite Lived Intangible Assets Amortization Expense After Year Five Thereafter Assets Total assets Contract with Customer, Asset, after Allowance for Credit Loss, Total Contract with Customer, Asset, after Allowance for Credit Loss Beginning Balance Ending Balance Aggregate shares Stock Issued During Period, Shares, Conversion of Convertible Securities Schedule Of Earnings Per Share Basic By Common Class [Table] Schedule Of Earnings Per Share Basic By Common Class [Table] Other Nonoperating Income Expense [Member] Other Income, Net Earnings Per Share Diluted Diluted Diluted net loss per share Earnings Per Share, Diluted, Total Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Schedule of Anti-Dilutive Weighted Average Shares Excluded From Diluted Net Loss Per Share Diluted Shares Calculation Entity Address Postal Zip Code Entity Address, Postal Zip Code Document Fiscal Period Focus Document Fiscal Period Focus Transfer from inventories to equipment under lease, net. Transfer From Inventories To Equipment Under Lease Net Transfer from Inventories to Equipment under lease, net Supply agreements. Supply Agreements [Member] Supply Agreement Increase Decrease In Accounts Receivable Accounts receivable Preferred stock, par value $0.01 per share, 10,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued and outstanding at March 31, 2023 and December 31, 2022 Preferred Stock Value Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total Allowance For Notes And Loans Receivable Current Notes receivable, allowance Statement Of Financial Position [Abstract] Schedule of contract balances. Schedule Of Contract Balances [Table] Schedule Of Contract Balances [Table] Entity File Number Entity File Number Scenario Unspecified [Domain] Scenario Statement Of Cash Flows [Abstract] Incentive stock options. Incentive Stock Options [Member] Incentive Stock Options Segment Geographical [Domain] Geographical Exercise Price Range [Axis] Range [Member] Statistical Measurement Statement Of Stockholders Equity [Abstract] Subsidiary Sale Of Stock [Axis] Sale of Stock Contingent milestone payments. Contingent Milestone Payments Contingent milestone payments Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent Exercise price of option on fair value (as a percent) Other Current Liabilities [Member] Other Current Liabilities Class of Stock [Domain] Beneficial ownership percentage Equity Method Investment, Ownership Percentage Subsequent Events [Abstract] 2026 Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization year three. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Year Three Product Warranty Accrual Classified Current Warranty Lessor Lease Description [Table] Lessor Lease Description [Table] Revenue From Contract With Customer [Text Block] Revenue from Contracts with Customers Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities Equipment under lease, net. Equipment Under Lease Net Equipment under lease, net Preferred Stock Par Or Stated Value Per Share Preferred stock, par value Contract With Customer Liability Current Deferred revenue Contract liability, current Remainder of 2023 Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year Subsequent Event Subsequent Events [Text Block] Weighted average number of shares of common stock diluted Weighted Average Number Of Diluted Shares Outstanding Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Agreement initiated date Agreement Date Agreement date. Securities Purchase Agreement Securities Purchase Agreement Member Securities purchase agreement member. Overview and basis of presentation. Overview And Basis Of Presentation [Table] Overview And Basis Of Presentation [Table] Finite Lived Intangible Assets Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Table] Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Total unrecognized compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Total unrecognized compensation expense Current Fiscal Year End Date Current Fiscal Year End Date Depreciation Depreciation Depreciation, Total Financial Instruments [Domain] Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents at end of the period Cash and cash equivalents at beginning of the period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Other Assets Noncurrent Other assets Entity Address Address Line1 Entity Address, Address Line One Deferred Revenue, Noncurrent, Total Deferred Revenue, Noncurrent Deferred revenue, non-current Finite Lived Intangible Assets By Major Class [Axis] Finite-Lived Intangible Assets by Major Class Accrued Liabilities Current [Abstract] Supplemental Cash Flow Information [Abstract] Supplemental cash flow information Overview and basis of presentation. Overview And Basis Of Presentation [Line Items] Overview And Basis Of Presentation [Line Items] Income Tax Expense Benefit Income tax expense/(benefit) from continuing operations Income Tax Expense (Benefit), Total Lessor, operating leases, remaining lease terms Lessor, operating lease, remaining lease term. Lessor Operating Lease Remaining Lease Term Lessor, operating leases, remaining lease terms Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price Options cancelled, Weighted Average Exercise Price Vesting [Axis] Vesting Preferred Stock Shares Issued Preferred stock, shares issued Balance Sheet Location [Domain] Balance Sheet Location Other Accrued Liabilities Current Other Financing Receivable Allowance For Credit Losses Write Offs Write-offs Payments To Acquire Property Plant And Equipment Purchase of property and equipment Payments to Acquire Property, Plant, and Equipment, Total Schedule of contract balances. Schedule Of Contract Balances [Line Items] Schedule Of Contract Balances [Line Items] Revenue Remaining Performance Obligation Revenue remaining performance obligation amount Summary of unrecognized stock-based compensation expense expected to be amortized. Summary Of Unrecognized Stock Based Compensation Expense Expected To Be Amortized Table [Text Block] Summary of Unrecognized Stock-based Compensation Expense Expected to be Amortized Common stock issued, Shares Stock Issued During Period, Shares, New Issues Issuance of common stock under ATM offering, net of offering costs Goodwill And Intangible Assets Disclosure [Abstract] Asia (Excluding South Korea). Asia Excluding South Korea [Member] Asia (Excluding South Korea) Contingent professional fees Employee Retention Credit, Cares Act Contingent Professional Fees Employee retention credit, cares act contingent professional fees. Equity [Abstract] Contract With Customer Liability Revenue Recognized Beginning contract liabilities recognized as revenue Operating Income Loss Operating loss Maximum value of common and preferred stock and other securities issuable. Maximum Value of Common and Preferred Stock and Other Securities Issuable Maximum value of common and preferred stock and other securities issuable Additional Paid In Capital Common Stock Additional paid-in capital Finite Lived Intangible Assets Future Amortization Expense [Abstract] Statement Scenario [Axis] Scenario Commitments and Contingencies Disclosure. Commitments And Contingencies Disclosure [Table] Commitments And Contingencies Disclosure [Table] Accrued Professional Fees Current Professional services Common Stock Voting Rights Common stock voting rights Entity Filer Category Entity Filer Category Patented Technology [Member] Acquired Technology Revenue from contracts with customers. Revenue From Contracts With Customers [Table] Revenue From Contracts With Customers [Table] Entity Current Reporting Status Entity Current Reporting Status Inventory Net Inventories Total Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization thereafter. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Thereafter Thereafter Inventory Disclosure [Text Block] Inventories Stockholders Equity Note Disclosure [Text Block] Stockholders' Equity Finite Lived Intangible Assets Net Intangible assets, net Net Carrying Amount Finite-Lived Intangible Assets, Net, Beginning Balance Finite-Lived Intangible Assets, Net, Ending Balance Stockholders Equity Ending Balance Beginning Balance Total stockholders’ equity Notes receivable interest rate. Notes Receivable Interest Rate Notes receivable interest rate Entity Tax Identification Number Entity Tax Identification Number Income Statement Location [Axis] Income Statement Location Restricted stock awards cancelled Restricted stock units cancelled Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Restricted stock units cancelled Common stock, par value $0.01 per share, 150,000 shares authorized at March 31, 2023 and December 31, 2022; 11,103 and 11,093 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively Common Stock Value Retained Earnings Accumulated Deficit Accumulated deficit Retained Earnings (Accumulated Deficit), Total Statement Equity Components [Axis] Equity Components Contract with customer asset recognized. Contract With Customer Asset Recognised Contract assets recognized Leases [Abstract] Contract With Customer Liability Ending balance Beginning balance Contract with Customer, Liability, Total Customer Relationships [Member] Customer Relationships Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Entity Emerging Growth Company Entity Emerging Growth Company Related Party Transaction [Axis] Related Party Transaction Operating Expenses [Abstract] Operating expenses Vested and exercisable at March 31, 2023 Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Number Schedule of Stock by Class [Table] Cost Of Revenue Total cost of revenue Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Expected term (years) Sale of ownership percentage Sale Of Ownership Percentage Sale of ownership percentage. 2024 Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization next twelve months. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Next Twelve Months Europe [Member] Europe Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum Expected volatility, maximum Document Transition Report Document Transition Report Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Restricted stock awards granted Sale of Stock, Price Per Share Weighted average gross sales price Commitments And Contingencies Disclosure [Text Block] Commitments and Contingencies Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Options exercised, Weighted Average Exercise Price Accounts receivable, net of allowance of $43 and $56, respectively Accounts Receivable Net Current Accounts receivable, current Accounts Receivable, after Allowance for Credit Loss, Current, Total Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Transfer from (to) Inventories to (from) Property and equipment, net Transfer from inventories To property and equipment, net. Transfer From Inventories To Property And Equipment Net Net Income Loss Net loss Net loss Operating Lease Liability Current Operating lease liabilities Lessee and Lessor Lease Description [Line Items] Lessee and lessor lease description. Lessee And Lessor Lease Description [Line Items] Lessee and Lessor Lease Description [Line Items] Exercise Price Range [Domain] Additional Paid In Capital [Member] Additional Paid-in Capital Summary of Stock Options Outstanding and Vested Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Entity Registrant Name Entity Registrant Name Allowance For Doubtful Accounts Receivable Current Ending balance Beginning balance Accounts receivable, allowance Cash And Cash Equivalents At Carrying Value Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Earnings Per Share [Text Block] Net Loss per Share Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Fair Value of Stock Options was Estimated Using Assumptions Class of Stock [Axis] Revenues Total revenue Share Based Compensation Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense, Total Property Plant And Equipment Net Property and equipment, net Property, Plant and Equipment, Net, Total Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Total unrecognized stock-based compensation expense Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Vested and expected to vest at March 31, 2022, Weighted Average Remaining Contractual Term (in Years) Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Award Type Statement [Line Items] Statement [Line Items] Vested and expected to vest at March 31, 2023, Weighted Average Exercise Price Options vested, Weighted average exercise price Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Security12b Title Title of 12(b) Security Finite Lived Intangible Assets Gross Gross Carrying Amount Finite-Lived Intangible Assets, Gross, Total Increase Decrease In Accounts Payable Accounts payable Increase (Decrease) in Accounts Payable, Total Common Stock [Member] Common Stock Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period Term of contract Net Cash Provided By Used In Operating Activities [Abstract] Cash flows from operating activities Equity Component [Domain] Equity Component Fair Value Measurement Policy Policy [Text Block] Fair Value Measurement Revenue From Contract With Customer Excluding Assessed Tax Product and service revenue Entity Address State Or Province Entity Address, State or Province Statement Geographical [Axis] Geographical Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Exercisable Weighted Average Remaining Contractual Term1 Vested and exercisable at March 31, 2022, Weighted Average Remaining Contractual Term (in Years) Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Net decrease in cash and cash equivalents Document Type Document Type Interest Paid Net Cash paid for interest Summary of share based compensation shares available for issuance. Summary Of Share Based Compensation Shares Available For Issuance Table [Text Block] Summary of Shares Available for Issuance Under 2020 Plan UNITED STATES United States Entity Shell Company Entity Shell Company Increase Decrease In Inventories Inventories Increase (Decrease) in Inventories, Total Allocated Share Based Compensation Expense Total stock-based compensation expense Commitments and Contingencies Disclosure [Line Items] Commitments And Contingencies Disclosure [Line Items] Commitments And Contingencies Disclosure [Line Items] Security Exchange Name Security Exchange Name Revenue From Contract With Customer [Abstract] Class of Stock [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Net Cash Provided By Used In Operating Activities Net cash used in operating activities Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Total unrecognized compensation expense, weighted-average period of recognition Options outstanding, Weighted average remaining contractual term (in years) Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Options Outstanding, Weighted Average Remaining Contractual Term (in Years) Commitments And Contingencies Disclosure [Abstract] Restricted Stock Units R S U [Member] Restricted Stock Units Summary of Restricted Stock Award Activity Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of Option Award Activity New Accounting Pronouncements Policy Policy [Text Block] Recently Issued Accounting Pronouncements Not Yet Adopted Common Stock Shares Outstanding Common stock, shares outstanding Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding, Ending Balance Inventory Work In Process Work-in-process Deferred Revenue, Current, Total Deferred Revenue, Current Deferred revenue, current Net Cash Provided By Used In Investing Activities [Abstract] Cash flows from investing activities Share-Based Payment Arrangement, Recognized Amount [Abstract] Scheduleof Finite Lived Intangible Assets Future Amortization Expense Table [Text Block] Schedule of Impairment of Underlying Assets, Remaining Amortization Expense Commitments And Contingencies Commitments and contingencies (Note 8) Two thousand twenty incentive award plan. Two Thousand Twenty Incentive Award Plan [Member] 2020 Incentive Award Plan Common Stock Shares Issued Common stock, shares issued Additional royalty payments percentage. Additional Royalty Payments Percentage Additional royalty payments rate Minimum [Member] Minimum Gross antidilutive securities excluded from computation of earnings per share amount. Gross Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Shares excluded from the calculation of net loss per diluted share Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum Risk-free interest rate, maximum Accrued Liabilities Current Accrued liabilities Total Stockholders Equity [Abstract] Stockholders’ equity: Net proceeds from transactions Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants Proceeds from Issuance of Preferred Stock, Preference Stock, and Warrants, Total Revenues [Abstract] Revenue Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Restricted stock awards cancelled Product [Member] Product Amortization Of Intangible Assets Amortization of intangible assets Award Type [Axis] Award Type Accounts Receivable Allowance For Credit Loss Table [Text Block] Summary of Allowance for Accounts Receivable Subsequent Event Subsequent Event [Member] Related Party Transaction [Domain] Related Party Transaction Other Nonoperating Income Expense Other income, net Other Nonoperating Income (Expense), Total Financing Receivable Allowance For Credit Losses Ending balance Beginning balance Nonoperating Income Expense [Abstract] Other income Research And Development Expense Research and development expenses Research and Development Expense, Total Warrant Two Warrant Two Member Warrant two member. Entity Central Index Key Entity Central Index Key Finite Lived Intangible Assets [Line Items] Finite Lived Intangible Assets [Line Items] Accounting Policies [Abstract] Cost of goods and service excluding amortization including depreciation. Cost Of Goods And Service Excluding Amortization Including Depreciation Total cost of revenue Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value Total fair value of options vested Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Expected volatility Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date Notes and other receivables, long-term, net of allowance of $16 and $9, respectively Notes And Loans Receivable Net Noncurrent Notes receivable, long-term Financing Receivable, after Allowance for Credit Loss, Noncurrent, Total Accounts receivables payment terms. Accounts Receivables Payment Terms Accounts receivables payment terms Balance Balance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant 2025 Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization year two. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Year Two Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Stock-Based Compensation Operating Lease Lease Income Lease Lease revenue Operating Lease, Lease Income, Total Vested and expected to vest at March 31, 2023, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Subsequent Event [Table] Organization Consolidation And Presentation Of Financial Statements [Abstract] Options outstanding, Weighted average exercise price Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Outstanding at end of period, Weighted Average Exercise Price Outstanding at beginning of period, Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant, Granted Or Awarded. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Granted Or Awarded Granted/Awarded Research And Development Expense [Member] Research and Development Expense Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum Risk-free interest rate, minimum Convertible stock price per share Convertible Stock Price Per Share Convertible stock price per share. Prepaid Expenses and Other Current Assets [Member] Prepaid and Other Current Assets Scenario Forecast [Member] Forecast KOREA, REPUBLIC OF South Korea 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: Retained Earnings [Member] Accumulated Deficit Allowance For Doubtful Accounts Receivable Write Offs Write-offs Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Sharebased Compensation Arrangement By Sharebased Payment Award Award Vesting Rights Percentage Award vesting percentage Entity Interactive Data Current Entity Interactive Data Current Vested and expected to vest at March 31, 2023 Options vested, Number Exercisable | shares Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Supplemental schedule of non-cash investing and financing activities Incentive Stock Options and Nonqualified Stock Options [Member] Incentive Stock Options And Nonqualified Stock Options [Member] Incentive Stock Options And Nonqualified Stock Options Provision For Doubtful Accounts Provision for credit losses Local Phone Number Local Phone Number Provision for doubtful accounts and notes receivable. Provision For Doubtful Accounts And Notes Receivable Provision for expected credit losses Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Loss Per Share Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Vesting period Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Leases. Leases [Member] Lease Disaggregation Of Revenue Table [Text Block] Summary of Product and Service Revenue Disaggregated by Geographic Region Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Options granted Other Liabilities Noncurrent Other long-term liabilities Notes receivable, net of allowance of $4 and $4, respectively Notes And Loans Receivable Net Current Notes receivable, current Financing Receivable, after Allowance for Credit Loss, Current, Total Income Statement Location [Domain] Income Statement Location Selling General And Administrative Expenses [Member] Selling, General and Administrative Expenses Non-vested at March 31, 2023 Non-vested at December 31, 2022 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Shares Outstanding Ending Balance, Shares Beginning Balance, Shares Increase Decrease In Prepaid Deferred Expense And Other Assets Prepaid and other current assets Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Inventory Disclosure [Abstract] Outstanding at March 31, 2023 Outstanding at December 31, 2022 Options outstanding, Number Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Document Fiscal Year Focus Document Fiscal Year Focus Purchase Obligation Purchase obligation Purchase Obligation, Total Vesting [Domain] Vesting Earnings Per Share Basic Basic Basic net loss per share Earnings Per Share, Basic, Total Approximate amount of employee retention credit Employee Retention Credit, Cares Act Retention Amount Employee retention credit, cares act retention amount. Dividends Common Stock Cash Cash dividend declared on common stock Assets [Abstract] Assets Increase Decrease In Accrued Liabilities Accrued liabilities Increase (Decrease) in Accrued Liabilities, Total Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum Expected volatility, minimum Prepaid Expense And Other Assets Current Prepaid and other current assets Percentage of warrants Percentage Of Warrants Percentage Of Warrants Series A Convertible Preferred Stock Series A Preferred Stock [Member] Financial Instrument [Axis] Restricted stock awards and units. Restricted Stock Awards And Units [Member] Restricted Stock Awards and Units Contingent milestone payments upon regulatory clearance and commercialization. Contingent Milestone Payments Upon Regulatory Clearance and Commercialization Contingent milestone payments upon regulatory clearance and commercialization Liabilities And Stockholders Equity [Abstract] Liabilities and stockholders’ equity Antidilutive Securities Name [Domain] Antidilutive Securities, Name Profit Loss Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total Assets Current [Abstract] Current assets: 2027 Finite Lived Intangible Assets Amortization Expense Year Four 2025 Finite Lived Intangible Assets Amortization Expense Year Two Exercise price of warrants Class of Warrant or Right, Exercise Price of Warrants or Rights Securities purchase agreement, date Securities Purchase Agreement, Date Securities purchase agreement, date. Increase Decrease In Operating Capital [Abstract] Changes in operating assets and liabilities: Exercise Price $2.65 Exercise Price Range One [Member] Exercise price range one. Cover [Abstract] Minimum percentage of beneficial owner of common stock upon conversion Minimum Percentage Of Beneficial Owner Of Common Stock Upon Conversion Minimum percentage of beneficial owner of common stock upon conversion. Products And Services [Domain] Product and Service Acquired Finite Lived Intangible Assets Weighted Average Useful Life Acquired intangible assets weighted average amortization period Notes and other receivables, noncurrent. Notes And Other Receivables Noncurrent [Member] Notes and Other Receivables, Long-Term, Net Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Restricted stock awards vested Inventory Finished Goods Finished Goods Exercise Price $6.04 Exercise Price Range Three [Member] Exercise price range three. Inventory Net [Abstract] Liabilities Current [Abstract] Current liabilities: Maximum [Member] Maximum Revenue from contracts with customers. Revenue From Contracts With Customers [Line Items] Revenue From Contracts With Customers [Line Items] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Summary of Total Stock-Based Compensation Expense Recognized Net Cash Provided By Used In Investing Activities Net cash used in investing activities Cost of goods and service excluding amortization including depreciation. Cost Of Goods And Service Excluding Amortization Including Depreciation [Abstract] Cost of revenue (exclusive of amortization) Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Deferred revenue. Deferred Revenue [Member] Deferred Revenue Stock Issued During Period Shares Stock Options Exercised Options exercised Schedule Of Inventory Current Table [Text Block] Schedule of Inventory Use Of Estimates Accounting Estimates 2028 Finite Lived Intangible Assets Amortization Expense Year Five Provision For Loan Losses Expensed Provision for credit losses Vested and exercisable at March 31, 2023, Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value Lease Income Lease revenue Lease Income, Total Financing Receivable Change In Present Value Interest Income Interest income on notes receivable 2026 Finite Lived Intangible Assets Amortization Expense Year Three Common Stock Shares Authorized Common stock, shares authorized Trading Symbol Trading Symbol Operating Leases Of Lessor Disclosure [Text Block] Leases Selling General And Administrative Expense Selling, general and administrative expenses Selling, General and Administrative Expense, Total Subsequent Event Type [Axis] Operating Lease Right Of Use Asset Amortization Expense Non-cash operating lease cost Balance Sheet Location [Axis] Balance Sheet Location Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Risk-free interest rate Accounts Payable Current Accounts payable Accounts Payable, Current, Total Plan Name [Axis] Plan Name Warrant One Warrant One Member Warrant one member. 2027 Employee service share based compensation non vested awards total compensation cost not yet recognized share based awards other than options future amortization year four. Employee Service Share Based Compensation Non Vested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Future Amortization Year Four Common Stock Par Or Stated Value Per Share Common stock, par value Exercise Price $7.13 - $8.62 Exercise Price Range Five [Member] Exercise price range five. Employee retention credit amount recognized Employee Retention Credit, CARES Act Retention Amount Recognized Employee Retention Credit, CARES Act retention amount recognized. Allowance For Credit Losses On Financing Receivables Table [Text Block] Summary of Allowance for Notes Receivable Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Restricted stock awards granted Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Authorized. Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Authorized Authorized Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 Revenue remaining performance obligation expected timing of satisfaction period Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Options granted, Weighted Average Exercise Price Weighted average shares excluded from the calculation of net loss per diluted share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount