Entity Central Index Key Cash and cash equivalents gross unrealized gains. Cash and cash equivalents gross unrealized losses. Cash equivalents and short-term investments, gross unrealized gains before tax. Cash equivalents and short term investments gross unrealized losses before tax. Cash and cash equivalents and short-term investments fair value disclosure. Cover [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Shell Company Entity Shell Company Entity Current Reporting Status Entity Current Reporting Status Entity File Number Entity File Number Entity Incorporation, State or Country Code Entity Incorporation State Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address Address Line1 Entity Address, City or Town Entity Address City Or Town Entity Address, State or Province Entity Address State Or Province Entity Address, Postal Zip Code Entity Address Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Document Quarterly Report Document Quarterly Report Document Transition Report Document Transition Report Entity Interactive Data Current Entity Interactive Data Current Title of 12(b) Security Security12b Title Security Exchange Name Security Exchange Name Related party contract liability noncurrent. Statement Of Financial Position [Abstract] ASSETS Assets [Abstract] CURRENT ASSETS: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Short-term investments Short Term Investments Accounts receivable, net Accounts Receivable Net Current Inventory Inventory Net Prepaid expenses and other current assets Prepaid Expense And Other Assets Current Total current assets Assets Current Operating lease right-of-use assets Operating Lease Right Of Use Asset Property and equipment, net Property Plant And Equipment Net Equity method investment Equity Method Investments Other assets Other Assets Noncurrent TOTAL ASSETS Assets LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity [Abstract] CURRENT LIABILITIES: Liabilities Current [Abstract] Accounts payable Accounts Payable Current Term notes, current portion Notes Payable Current Accrued liabilities Accrued Liabilities Current Lease liability, current portion Operating Lease Liability Current Total current liabilities Liabilities Current Lease liability, noncurrent portion Operating Lease Liability Noncurrent Term notes, noncurrent portion Long Term Notes Payable Related party contract liability, noncurrent portion Related Party Contract Liability Noncurrent TOTAL LIABILITIES Liabilities STOCKHOLDERS’ EQUITY: Stockholders Equity [Abstract] Preferred stock Preferred Stock Value Common stock Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income Loss Net Of Tax Accumulated deficit Retained Earnings Accumulated Deficit TOTAL STOCKHOLDERS’ EQUITY Stockholders Equity TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities And Stockholders Equity Income Statement [Abstract] Revenue: Revenues [Abstract] Product revenue Revenue From Contract With Customer Excluding Assessed Tax Type of Revenue [Extensible List] Type Of Revenue Extensible List Cost of revenue: Cost Of Revenue [Abstract] Cost of product revenue Cost Of Goods And Services Sold Type of Cost, Good Or Service [Extensible List] Type Of Cost Good Or Service Extensible List Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Expense Sales and marketing Selling And Marketing Expense General and administrative General And Administrative Expense Total operating expenses Costs And Expenses Income (loss) from operations Operating Income Loss Share in net loss of equity method investment Income Loss From Equity Method Investments Interest expense Interest Expense Other income (expense), net Other Nonoperating Income Expense Net income (loss) before taxes Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest Income tax provision Income Tax Expense Benefit Net income (loss) Net Income Loss Other comprehensive income (loss): Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Unrealized gain/(loss) on available-for-sale securities Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax Adjustment for net gain realized and included in other income, net Other Comprehensive Income Loss Reclassification Adjustment From A O C I For Sale Of Securities Net Of Tax Total other comprehensive income (loss) Other Comprehensive Income Loss Net Of Tax Total comprehensive income (loss) Comprehensive Income Net Of Tax Net income (loss) per share Earnings Per Share [Abstract] Basic Earnings Per Share Basic Diluted Earnings Per Share Diluted Shares used in computing net income (loss) per share Weighted Average Number Of Shares Outstanding [Abstract] Basic Weighted Average Number Of Shares Outstanding Basic Diluted Weighted Average Number Of Diluted Shares Outstanding Statement Of Stockholders Equity [Abstract] Statement [Table] Statement [Table] Equity Components Statement Equity Components [Axis] Equity Component Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-In Capital Additional Paid In Capital [Member] Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income [Member] Accumulated Deficit Retained Earnings [Member] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] Public Offering Over Allotment Option [Member] Statement [Line Items] Statement [Line Items] Beginning balance Beginning balance, Shares Shares Outstanding Exercise of stock options Stock Issued During Period Value Stock Options Exercised Exercise of stock options, Shares Stock Issued During Period Shares Stock Options Exercised Unrealized gain (loss) on available-for- sale securities Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax Issuance of common stock under employee stock purchase plan Stock Issued During Period Value Employee Stock Purchase Plan Issuance of common stock under employee stock purchase plan, Share Stock Issued During Period Shares Employee Stock Purchase Plans Issuance of common stock in connection with public offering, net of issuance costs Stock Issued During Period Value New Issues Issuance of common stock in connection with initial/public offering, Shares Stock Issued During Period Shares New Issues Restricted stock units withheld in net settlement for tax Restricted Stock Value Shares Issued Net Of Tax Withholdings Restricted stock units withheld in net settlement for tax, Shares Restricted Stock Shares Issued Net Of Shares For Tax Withholdings Issuance of common stock in connection with vesting of restricted stock units Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures Issuance of common stock in connection with vesting of restricted stock, Shares Stock Issued During Period Shares Restricted Stock Award Net Of Forfeitures Stock-based compensation Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Net gain reclassified from accumulated other comprehensive income Net income (loss) Profit Loss Ending balance Ending balance, shares Issuance costs Adjustments To Additional Paid In Capital Stock Issued Issuance Costs Operating lease right of use asset amortization. Increase decrease in operating lease liabilities. Repayments Of Term Loan Proceeds from issuance of common stock under employee stock purchase plan. Equity method investment obtained in exchange for related party contract liability. Transfer of fixed assets to inventory. Statement Of Cash Flows [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES: Net Cash Provided By Used In Operating Activities [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities [Abstract] Depreciation and amortization Depreciation And Amortization Share in net loss of equity method investment Stock-based compensation Share Based Compensation Amortization of right-of-use assets Operating Lease Right Of Use Asset Amortization Accretion of discount on available-for-sale securities Accretion Amortization Of Discounts And Premiums Investments Loss on write down of fixed assets Disposal Group Not Discontinued Operation Loss Gain On Write Down Amortization of debt issuance costs Amortization Of Financing Costs Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Accounts receivable Increase Decrease In Accounts Receivable Inventory Increase Decrease In Inventories Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Other assets Increase Decrease In Other Operating Assets Accounts payable Increase Decrease In Accounts Payable Accrued and other current liabilities Increase Decrease In Accrued Liabilities And Other Operating Liabilities Lease liabilities Increase Decrease In Operating Lease Liabilities Net cash used in operating activities Net Cash Provided By Used In Operating Activities CASH FLOWS FROM INVESTING ACTIVITIES: Net Cash Provided By Used In Investing Activities [Abstract] Purchase of available-for-sale securities Payments To Acquire Available For Sale Securities Debt Proceeds from maturities of available-for-sale securities Proceeds From Sale And Maturity Of Available For Sale Securities Purchase of property and equipment Payments To Acquire Property Plant And Equipment Net cash provided by investing activities Net Cash Provided By Used In Investing Activities CASH FLOWS FROM FINANCING ACTIVITIES: Net Cash Provided By Used In Financing Activities [Abstract] Payments of offering costs Payments Of Stock Issuance Costs Proceed from issuance of common stock from public offering, net of issuance cost paid Proceeds From Issuance Of Common Stock Payments of taxes withheld on net settled vesting of restricted stock units Payments Related To Tax Withholding For Share Based Compensation Principal payments of term loan Repayments Of Term Loan Net proceeds from term loan Proceeds From Issuance Of Long Term Debt Proceeds from stock option exercises Proceeds From Stock Options Exercised Proceeds from issuance of common stock under employee stock purchase plan Proceeds From Issuance Of Common Stock Under Employee Stock Purchase Plan Net cash provided by (used in) financing activities Net Cash Provided By Used In Financing Activities Net increase in cash, cash equivalents and restricted cash Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash, cash equivalents and restricted cash at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash, cash equivalents and restricted cash equivalents at end of period SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid Net Income tax paid Income Taxes Paid NON-CASH INVESTING AND FINANCING ACTIVITIES: Noncash Investing And Financing Items [Abstract] Right-of-use asset obtained in exchange for lease liability Right Of Use Asset Obtained In Exchange For Operating Lease Liability Property and equipment purchases included in accounts payable and accrued liabilities Capital Expenditures Incurred But Not Yet Paid Equity method investment obtained in exchange for related party contract liability Equity Method Investment Obtained In Exchange For Related Party Contract Liability Transfer of fixed assets to inventory Transfer Of Fixed Assets To Inventory Organization Consolidation And Presentation Of Financial Statements [Abstract] Organization and Basis of Presentation Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Accounting Policies [Abstract] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Fair Value Disclosures [Abstract] Financial Instruments and Fair Value Measurements Fair Value Disclosures [Text Block] Cash And Cash Equivalents [Abstract] Cash Equivalents and Short-Term Investments Cash Cash Equivalents And Short Term Investments [Text Block] Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Commitments And Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments And Contingencies Disclosure [Text Block] Debt Disclosure [Abstract] Term Notes Debt Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] Stock-Based Compensation Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Net Income (Loss) Per Share Earnings Per Share [Text Block] Disaggregation Of Revenue [Abstract] Revenue Revenue From Contract With Customer [Text Block] Equity Method Investments And Joint Ventures [Abstract] Equity Method Investments Equity Method Investments Disclosure [Text Block] Risk and uncertainties. Risk and Uncertainties Risk And Uncertainties Policy [Text Block] Basis of Presentation Basis Of Accounting Policy Policy [Text Block] Cash, Cash Equivalents and Restricted Cash Cash And Cash Equivalents Restricted Cash And Cash Equivalents Policy Equity Method Investments Equity Method Investments Policy Fair Value of Financial Instruments Fair Value Of Financial Instruments Policy Revenue Revenue Recognition Policy [Text Block] Schedule of reconciliation of cash cash equivalents and restricted cash. Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash Schedule Of Reconciliation Of Cash Cash Equivalents And Restricted Cash Table [Text Block] Schedule of Financial Assets and Liabilities Measured at Fair Value Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Summary of Cash Equivalents and Short-Term Investments Schedule Of Cash Cash Equivalents And Short Term Investments Table [Text Block] Summary of Remaining Contractual Maturities for Available-for-sale Securities Debt Securities Available For Sale Table [Text Block] Schedule of Inventory Schedule Of Inventory Current Table [Text Block] Schedule of Accrued Liabilities Schedule Of Accrued Liabilities Table [Text Block] Schedule of Minimum Future Rental Payments Lessee Operating Lease Liability Maturity Table [Text Block] Lessee, operating lease, liability, not yet commenced. Schedule of Minimum Undiscounted Future Rental Payments Not Yet Commenced Lessee Operating Lease Liability Not Yet Commenced Table [Text Block] Schedule of Current and Noncurrent Debt and Net Discount or Premium Balances Schedule Of Debt Table [Text Block] Schedule of Future Minimum Payments for Principal and Interest Schedule Of Maturities Of Long Term Debt Table [Text Block] Schedule of Total Stock-Based Compensation Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Schedule of Option Activity under 2009 Plan and 2019 Plan Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Schedule of RSU Activity under 2019 Plan Schedule Of Share Based Compensation Restricted Stock Units Award Activity Table [Text Block] Components of Basic and Diluted Net Income (Loss) Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Summary of Outstanding Potentially Dilutive Common Stock Equivalents Excluded from Calculation of Diluted Net Loss Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Schedule of Product Revenue Based on Product Line and Location Disaggregation Of Revenue Table [Text Block] Summary of Unaudited Balance Sheet Schedule Of Condensed Balance Sheet Table [Text Block] Summary of Unaudited Results of Operations Schedule Of Condensed Income Statement Table [Text Block] Entity incorporation, date of incorporation Entity Incorporation Date Of Incorporation Accumulated deficit Cash, cash equivalents and short-term investments Cash Cash Equivalents And Short Term Investments Restricted cash Restricted Cash Total cash, cash equivalents, and restricted cash Summary of significant accounting policies. Summary of significant accounting policies. Summary Of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Product and Service Product Or Service [Axis] Product and Service Products And Services [Domain] License License [Member] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Notice period for cancellation of agreement. Notice period for cancellation of agreement Notice Period For Cancellation Of Agreement Revenue Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Recurring Fair Value Measurements Recurring [Member] Asset Class Fair Value By Asset Class [Axis] Asset Class Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation By Asset Class [Domain] U.S. Treasury Securities U S Treasury Securities [Member] Money Market Funds Money Market Funds [Member] Commercial Paper Commercial Paper [Member] Corporate Bonds Corporate Bond Securities [Member] Fair Value Hierarchy and NAV Fair Value By Fair Value Hierarchy Level [Axis] Fair Value Hierarchy and NAV Fair Value Measurements Fair Value Hierarchy [Domain] Level 1 Fair Value Inputs Level1 [Member] Level 2 Fair Value Inputs Level2 [Member] Level 3 Fair Value Inputs Level3 [Member] 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] Assets: Total assets Assets Fair Value Disclosure Cash equivalents and short term investments. Schedule Of Cash And Cash Equivalents [Table] Schedule Of Cash And Cash Equivalents [Table] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Cash And Cash Equivalents [Line Items] Cash And Cash Equivalents [Line Items] Cash equivalents Amortized Cost Basis Cash Equivalents At Carrying Value Cash equivalents Unrealized Gains Cash And Cash Equivalents Gross Unrealized Gains Cash equivalents Unrealized Losses Cash And Cash Equivalents Gross Unrealized Losses Cash equivalents, Fair Value Cash And Cash Equivalents Fair Value Disclosure Short-term investments Amortized Cost Basis Available For Sale Debt Securities Amortized Cost Basis Short-term investments Unrealized Gains Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax Short-term investments Unrealized Losses Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax Short-term investments, Fair Value Available For Sale Securities Debt Securities Cash equivalents and short-term investments, Amortized Cost Basis Cash Equivalents And Short Term Investments Cash equivalents and short-term investments, Unrealized Gains Cash Equivalents And Short Term Investments Gross Unrealized Gains Before Tax Cash equivalents and short-term investments, Unrealized losses Cash Equivalents And Short Term Investments Gross Unrealized Losses Before Tax Cash equivalents and short-term investments, Fair Value Cash And Cash Equivalents And Short Term Investments Fair Value Disclosure Available for sale securities debt maturities within greater than one year and less than two years fair value. One year or less Available For Sale Securities Debt Maturities Within One Year Fair Value Greater than one year and less than two years Available For Sale Securities Debt Maturities Within Greater Than One Year And Less Than Two Years Fair Value Total Available For Sale Securities Debt Maturities Single Maturity Date Consigned inventory, net of reserves. Inventory Disclosure [Abstract] Raw material Inventory Raw Materials Net Of Reserves Work in progress Inventory Work In Process Net Of Reserves Finished goods Inventory Finished Goods Net Of Reserves Consigned inventory Consigned Inventory Net Of Reserves Total inventory Accrued research and development costs, current. Accrued asset purchases current. Payables And Accruals [Abstract] Accrued employee compensation Employee Related Liabilities Current Accrued research and development costs Accrued Research And Development Costs Current Accrued asset purchases Accrued Asset Purchases Current Accrued professional services Accrued Professional Fees Current Other Other Accrued Liabilities Current Total accrued liabilities Lease term expiration month and year. Lease commencement date. Letters of credit secured by restricted cash. Lessee operating leases remaining lease term. Loss Contingencies [Table] Loss Contingencies [Table] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Five thousand and four hundred zero three Betsy Rose Drive. 5403 Lease Five Thousand And Four Hundred Zero Three Betsy Rose Drive [Member] Geographical Statement Geographical [Axis] Geographical Segment Geographical [Domain] Santa Clara. Santa Clara, California Santa Clara [Member] Five thousand and three hundred fifty three Betsy Rose Drive. 5353 Lease Five Thousand And Three Hundred Fifty Three Betsy Rose Drive [Member] Five thousand three hundred fifty three and five thousand four hundred zero three Betsy Rose drive. 5403 and 5353 Lease Five Thousand Three Hundred Fifty Three And Five Thousand Four Hundred Zero Three Betsy Rose Drive [Member] Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Maximum Maximum [Member] Minimum [Member] Minimum [Member] Cash and Cash Equivalents Cash And Cash Equivalents [Axis] Cash and Cash Equivalents Restricted Cash And Cash Equivalents Cash And Cash Equivalents [Member] Initial security deposit. Initial Security Deposit Initial Security Deposit [Member] Scenario Statement Scenario [Axis] Scenario Scenario Unspecified [Domain] Scenario Forecast Scenario Forecast [Member] Three zero zero three Bunker Hill Lane. 3003 Lease Three Zero Zero Three Bunker Hill Lane [Member] Germany D E Loss Contingencies [Line Items] Loss Contingencies [Line Items] Area of office and laboratory space Area Of Real Estate Property Lease term expiration month and year Lease Term Expiration Month And Year Lease commencement date Lease Commencement Date Letter of credit secured by restricted cash Letters Of Credit Secured By Restricted Cash Operating lease right-of-use asset Operating lease liabilities Operating Lease Liability Operating lease, remaining lease term Lessee Operating Leases Remaining Lease Term Lease term expiration date Lease Expiration Date1 Initial term of building Lessee Operating Lease Term Of Contract Lessee, Operating Lease, Existence of Option to Extend Lessee Operating Lease Option To Extend Lessee operating lease rent abatement term for first building. Lessee operating lease rent abatement term for second floor. Lease rent abatement term for first building Lessee Operating Lease Rent Abatement Term For First Building Lease rent abatement term for second floor Lessee Operating Lease Rent Abatement Term For Second Floor Tenant improvements allowance Tenant Improvements Operating lease extended duration. Operating lease extended term date. Operating lease, extended period Operating Lease Extended Duration Operating lease extended term date Operating Lease Extended Term Date Lessee, Operating Lease, Existence of Option to Extend Lessee Operating Lease Existence Of Option To Extend Number of operating lease optional extension. Operating lease optional extension period. Prepayment for rent. Line of credit Line Of Credit Prepayment for rent Prepayment For Rent Number of operating lease optional extension Number Of Operating Lease Optional Extension Operating lease, optional extension term Operating Lease Optional Extension Period Operating lease liability weighted average incremental borrowing rate. Operating lease, weighted average remaining lease term Operating Lease Weighted Average Remaining Lease Term1 Operating lease liability, weighted average incremental borrowing rate Operating Lease Liability Weighted Average Incremental Borrowing Rate Operating Lease [Abstract] Operating Lease [Abstract] Operating Lease Liabilities Payments Due [Abstract] Operating Lease Liabilities Payments Due [Abstract] 2021 (remainder) Lessee Operating Lease Liability Payments Remainder Of Fiscal Year 2022 Lessee Operating Lease Liability Payments Due Next Twelve Months 2023 Lessee Operating Lease Liability Payments Due Year Two 2024 Lessee Operating Lease Liability Payments Due Year Three 2025 Lessee Operating Lease Liability Payments Due Year Four 2026 Lessee Operating Lease Liability Payments Due Year Five Thereafter Lessee Operating Lease Liability Payments Due After Year Five Total minimum lease payments Lessee Operating Lease Liability Payments Due Less: imputed interest and adjustments Lessee Operating Lease Liability Undiscounted Excess Amount Lessee operating lease liability payments not yet commenced remainder of fiscal year. Lessee operating lease liability payments not yet commenced due next twelve months. Lessee, operating lease, liability, payments, not yet commenced due year two. Lessee, operating lease, liability, payments, not yet commenced due year three. Lessee, operating lease, liability, payments, not yet commenced due year four. Lessee, operating lease, liability, payments, not yet commenced due year five. Lessee, operating lease, liability, payments, not yet commenced due thereafter. Lessee, operating lease, liability, payments, not yet commenced due. Lessee Lease Description [Table] Lessee Lease Description [Table] Five thousand and four hundred zero three Betsy Rose Drive and three thousand three Bunker Hill Lane. 5403 and 3003 Lease Five Thousand And Four Hundred Zero Three Betsy Rose Drive And Three Thousand Three Bunker Hill Lane [Member] Lessee Lease Description [Line Items] Lessee Lease Description [Line Items] Lessee, Operating Lease, Not yet Commenced, Description [Abstract] Lessee Operating Lease Not Yet Commenced Description [Abstract] 2021 (remainder) Lessee Operating Lease Liability Payments Not Yet Commenced Remainder Of Fiscal Year 2022 Lessee Operating Lease Liability Payments Not Yet Commenced Due Next Twelve Months 2023 Lessee Operating Lease Liability Payments Not Yet Commenced Due Year Two 2024 Lessee Operating Lease Liability Payments Not Yet Commenced Due Year Three 2025 Lessee Operating Lease Liability Payments Not Yet Commenced Due Year Four 2026 Lessee Operating Lease Liability Payments Not Yet Commenced Due Year Five Thereafter Lessee Operating Lease Liability Payments Not Yet Commenced Due Thereafter Total minimum lease payments Lessee Operating Lease Liability Payments Not Yet Commenced Due Operating lease cost Operating Lease Cost Debt Instrument [Table] Debt Instrument [Table] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Loan and security agreement. Loan and Security Agreement Loan And Security Agreement [Member] Legal Entity Legal Entity [Axis] Entity Entity [Domain] Silicon Valley Bank [Member] Silicon Valley Bank Silicon Valley Bank [Member] Credit Facility Credit Facility [Axis] Credit Facility Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Short-term Debt, Type Short Term Debt Type [Axis] Short-term Debt, Type Short Term Debt Type [Domain] Short Term Notes [Member] Short Term Notes Short Term Notes [Member] Debt Term [Axis] Debt Term Debt Term [Axis] Debt Term [Domain] Debt Term Debt Term [Domain] Tranche One [Member] Tranche One Tranche One [Member] Tranche Two [Member] Tranche Two Tranche Two [Member] Minimum Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] Prime Rate Prime Rate [Member] Long-term Debt, Type Longterm Debt Type [Axis] Long-term Debt, Type Longterm Debt Type [Domain] Supplemental term loan. Supplemental Term Loan Supplemental Term Loan [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Amount Debt Instrument Face Amount Debt Final Payment Percentage Of Aggregate Principal Amount Debt interest rate Debt Instrument Interest Rate Effective Percentage Debt interest rate basis Debt Instrument Basis Spread On Variable Rate1 Debt, final payment as percentage of original aggregate principal amount Debt Final Payment Percentage Of Aggregate Principal Amount Debt, final payment amount Debt Instrument Periodic Payment Terms Balloon Payment To Be Paid Debt, warrants issued Class Of Warrant Or Right Outstanding Debt, fair value of warrants issued Warrants Not Settleable In Cash Fair Value Disclosure Termination of line of credit facility. Line of credit facility, termination fee. Termination of line of credit facility Termination Of Line Of Credit Facility Line of credit facility termination fee Line Of Credit Facility Termination Fee Proceeds of supplemental term loan, net of final balloon payment fee Proceeds From Debt Net Of Issuance Costs Proceeds of supplemental term loan Proceeds From Issuance Of Debt Debt maturity date Debt Instrument Maturity Date Debt payments description Debt Instrument Payment Terms Debt Instrument Periodic Payment [Abstract] Principal amount of term note Net premium associated with accretion of final payment, and other debt issuance costs Debt Instrument Unamortized Discount Premium Net Term note, current and noncurrent Long Term Debt Less term note, current portion Long Term Debt Current Term note, noncurrent portion Long Term Debt Noncurrent Debt Instrument Expected Repayment Amount 2021 (remainder) Long Term Debt Maturities Repayments Of Principal Remainder Of Fiscal Year 2022 Long Term Debt Maturities Repayments Of Principal In Next Twelve Months 2023 Long Term Debt Maturities Repayments Of Principal In Year Two Total future payments Debt Instrument Expected Repayment Amount Less amounts representing interest Interest Expense Long Term Debt Less final payment Total principal amount of term note payments 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] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of Product Revenue Cost Of Sales [Member] Research and Development Research And Development Expense [Member] Sales and Marketing Selling And Marketing Expense [Member] General and Administrative General And Administrative Expense [Member] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items] Total stock-based compensation Allocated Share Based Compensation Expense Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] Plan Name Plan Name [Axis] Plan Name Plan Name [Domain] Two thousand and nineteen equity incentive plan. 2019 Equity Incentive Plan Two Thousand And Nineteen Equity Incentive Plan [Member] Award Type Award Type [Axis] Award Type Share Based Compensation Arrangements By Share Based Payment Award Award Type And Plan Name [Domain] Restricted Stock Units Restricted Stock Units R S U [Member] Two thousand and nineteen employees stock purchase plan. 2019 Employee Stock Purchase Plan Two Thousand And Nineteen Employees Stock Purchase Plan [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-based compensation expenses capitalized amount Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount Automatic annual increase in common stock reserved for issuance as percentage of capital stock outstanding on preceding fiscal year end date Maximum period of automatic annual increase in common stock reserved for issuance. Common stock reserved for issuance Common Stock Capital Shares Reserved For Future Issuance Automatic annual increase in common stock reserved for issuance Automatic Annual Increase In Common Stock Reserved For Issuance As Percentage Of Capital Stock Outstanding On Preceding Fiscal Year End Date Maximum period of automatic annual increase in common stock reserved for issuance Maximum Period Of Automatic Annual Increase In Common Stock Reserved For Issuance Shares available for issuance Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Share based compensation arrangement by share based payment award options shares available for grant. Share Based compensation arrangement by share based payment award number of shares available for grant exercised in period. Share-based compensation arrangement by share based payment award, number of shares available for grant, forfeited in period. Shares Available for Grant Share Based Compensation Arrangement By Share Based Payment Award Options Shares Available For Grant Roll Forward Shares Available for Grant, Beginning balance Shares Available for Grant, Awards authorized Share Based Compensation Arrangement By Share Based Payment Award Number Of Additional Shares Authorized Shares Available for Grant, Options exercised Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Exercised In Period Shares Available for Grant, Options forfeited Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant Forfeited In Period Shares Available for Grant, Ending balance Number of Shares Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Roll Forward Number of Shares, Beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of Shares, Options exercised Number of Shares, Options forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Number of Shares, Ending balance Number of Shares, Vested and exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Number of Shares, Vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Weighted-Average Exercise Price Per Share Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Rollforward Weighted-Average Exercise Price Per Share, Beginning balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted-Average Exercise Price Per Share, Options exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted-Average Exercise Price Per Share, Options forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted-Average Exercise Price Per Share, Ending balance Weighted-Average Exercise Price Per Share, Vested and exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted-Average Exercise Price Per Share, Vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Share based compensation arrangement by share based payment award options exercises in period weighted average remaining contractual term. Weighted-Average Remaining Term Share Based Compensation Arrangement By Share Based Payment Award Options Additional Disclosures [Abstract] Weighted-Average Remaining Term, Balance Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Weighted Average Remaining Contractual Term Weighted-Average Remaining Term, Vested and exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Weighted-Average Remaining Term, Vested and expected to vest Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Share based compensation arrangement by share based payment award options intrinsic value. Aggregate Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Intrinsic Value [Abstract] Aggregate Intrinsic Value, Balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate Intrinsic Value, Options exercised Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value Aggregate Intrinsic Value, Vested and exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Aggregate Intrinsic Value, Vested and expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Vesting period Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 Share-based compensation vesting rights, terms Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Rights Number of Shares Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Roll Forward Number of Shares, Beginning balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number Number of Shares, RSUs granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Number of Shares, RSUs vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Number of Shares, RSUs forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period Number of Shares, Ending balance Weighted-Average Grant Date Fair Value Per Share Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Roll Forward Weighted-Average Grant Date Fair Value Per Share, Beginning balance Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value Per Share, RSUs granted Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value Per Share, RSUs vested Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value Per Share, RSUs forfeited Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value Weighted-Average Grant Date Fair Value Per Share, Ending balance Purchase shares of common stock, price per share, percentage of fair market value Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent Incremental common shares attributable to share based payment arrangements stock options. Incremental common shares attributable to share based payment arrangements restricted stock units. Incremental common shares attributable to share based payment arrangements employee stock purchase plan. Numerator: Net Income Loss Available To Common Stockholders Basic [Abstract] Net income (loss) Basic: Weighted Average Number Of Shares Outstanding Basic [Abstract] Dilutive effect of outstanding common stock options Incremental Common Shares Attributable To Share Based Payment Arrangements Stock Options Dilutive effect of restricted stock units Incremental Common Shares Attributable To Share Based Payment Arrangements Restricted Stock Units Dilutive effect of common stock pursuant to employee stock purchase plan Incremental Common Shares Attributable To Share Based Payment Arrangements Employee Stock Purchase Plan Weighted average number of common shares outstanding - diluted Net income (loss) per share: Earnings Per Share Basic And Diluted [Abstract] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table] Antidilutive Securities Antidilutive Securities Excluded From Computation Of Earnings Per Share By Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities Name [Domain] Common Stock Options Issued and Outstanding Employee Stock Option [Member] Employee Stock Purchase Plan Employee Stock [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Anti-dilutive securities excluded from calculation of diluted net loss per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount Disaggregation Of Revenue [Table] Disaggregation Of Revenue [Table] Coronary. Coronary Coronary [Member] Peripheral. Peripheral Peripheral [Member] Other product line. Other Other Product Line [Member] United States U S Europe Europe [Member] All other countries. All Other Countries All Other Countries [Member] Disaggregation Of Revenue [Line Items] Disaggregation Of Revenue [Line Items] Cash contribution from exchange of equity. Percentage of cash contribution received from exchange of equity current. Percentage of cash contribution receivable from exchange of equity within one year. Schedule Of Equity Method Investments [Table] Schedule Of Equity Method Investments [Table] Investment, Name Schedule Of Equity Method Investment Equity Method Investee Name [Axis] Investment, Name Equity Method Investee Name [Domain] JV agreement with Genesis MedTech JV Agreement with Genesis MedTech J V Agreement With Genesis Med Tech [Member] Collaborative Arrangement and Arrangement Other than Collaborative Type Of Arrangement [Axis] Collaborative Arrangement and Arrangement Other than Collaborative Arrangements And Nonarrangement Transactions [Member] Share subscription agreement. Share Subscription Agreement Share Subscription Agreement [Member] License agreement. License Agreement License Agreement [Member] Related Party Related Party Transactions By Related Party [Axis] Related Party Related Party [Domain] Joint Venture Co Venturer [Member] Schedule Of Equity Method Investments [Line Items] Schedule Of Equity Method Investments [Line Items] Ordinary shares issued Equity percentage Equity Method Investment Ownership Percentage Cash contribution from exchange of equity Cash Contribution From Exchange Of Equity Percentage of cash contribution received from exchange of equity upon signing of agreement Percentage Of Cash Contribution Received From Exchange Of Equity Current Percentage of cash contribution receivable from exchange of equity within one year Percentage Of Cash Contribution Receivable From Exchange Of Equity Within One Year Percentage of equity stake received. Percentage of equity stake received Percentage Of Equity Stake Received Related party transaction. transaction price Related Party Transaction Amounts Of Transaction Balance sheet: Equity Method Investment Summarized Financial Information [Abstract] Current assets Current liabilities Net assets Assets Net Loss from operations