Entity Central Index Key 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 Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Entity Shell Company Entity Shell Company Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Ex Transition Period Entity Ex Transition Period Title of 12(b) Security Security12b Title Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name 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, Address Line Two Entity Address Address Line2 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 Statement Of Financial Position [Abstract] Statement [Table] Statement [Table] Class of Stock Statement Class Of Stock [Axis] Class of Stock Class Of Stock [Domain] Convertible preferred stock series AA. Convertible Preferred Stock Series AA Convertible Preferred Stock Series A A [Member] Convertible preferred stock series BB. Convertible Preferred Stock Series BB Convertible Preferred Stock Series B B [Member] Statement [Line Items] Statement [Line Items] Assets Assets [Abstract] Current assets: Assets Current [Abstract] Cash and cash equivalents Cash And Cash Equivalents At Carrying Value Marketable securities Available For Sale Securities Debt Securities Current Deferred offering costs Deferred Offering Costs Prepaid expenses Prepaid Expense Current Other current assets Other Assets Current Total current assets Assets Current Property and equipment, net Property Plant And Equipment Net Deposits Deposits Assets Noncurrent Total assets Assets Liabilities, convertible preferred stock and stockholders’ equity (deficit) Liabilities And Stockholders Equity [Abstract] Current liabilities: Liabilities Current [Abstract] Accounts payable and accrued liabilities Accounts Payable And Accrued Liabilities Current Other liabilities Other Liabilities Current Total current liabilities Liabilities Current Debt Long Term Debt Noncurrent Other non-current liabilities Other Liabilities Noncurrent Total liabilities Liabilities Commitments and contingencies (Note 8) Commitments And Contingencies Temporary Equity Temporary Equity [Abstract] Convertible preferred stock Temporary Equity Carrying Amount Attributable To Parent Stockholders’ equity (deficit): Stockholders Equity [Abstract] Common stock, $0.0001 par value; 1,230,000,000 shares authorized as of September 30, 2021, 30,588,495 shares and 1,875,422 shares issued and outstanding at September 30, 2021 and December 31, 2020, respectively Common Stock Value Additional paid-in capital Additional Paid In Capital Common Stock Accumulated deficit Retained Earnings Accumulated Deficit Accumulated other comprehensive loss Accumulated Other Comprehensive Income Loss Net Of Tax Total stockholders’ equity (deficit) Stockholders Equity Total liabilities, convertible preferred stock and stockholders’ equity (deficit) Liabilities And Stockholders Equity Common stock, par value Common Stock Par Or Stated Value Per Share Common stock, shares authorized Common Stock Shares Authorized Common stock, shares issued Common Stock Shares Issued Common stock, shares outstanding Common Stock Shares Outstanding Research and development excluding in process expense. Income Statement [Abstract] Operating expenses: Operating Expenses [Abstract] Research and development Research And Development Excluding In Process Expense General and administrative General And Administrative Expense Alvaxa IPR&D Research And Development In Process Total operating expenses Operating Expenses Loss from operations Operating Income Loss Other income (expense): Nonoperating Income Expense [Abstract] Interest income Investment Income Net Interest expense, including $0 and $645 with related parties in the three months and nine months ended September 30, 2021 and 2020, respectively Interest Expense Fair value adjustments on embedded debt derivatives, including $0 and $575 with related parties in the three months and nine months ended September 30, 2021 and 2020, respectively Embedded Derivative Gain Loss On Embedded Derivative Net Loss on fixed asset disposition Gain Loss On Sale Of Property Plant Equipment Gain on debt extinguishment Gains Losses On Extinguishment Of Debt Net loss Net Income Loss Cumulative dividends on convertible preferred stock Temporary Equity Dividends Adjustment Net loss attributable to common stockholders Net Income Loss Available To Common Stockholders Basic Net loss per common share, basic and diluted Earnings Per Share Basic And Diluted Weighted-average number of shares used in computing net loss per common share, basic and diluted Weighted Average Number Of Share Outstanding Basic And Diluted Comprehensive loss: Comprehensive Income Net Of Tax [Abstract] Net loss Other comprehensive items: Other Comprehensive Income Loss Net Of Tax Period Increase Decrease [Abstract] Unrealized gain (loss) on marketable securities Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax Total other comprehensive gain (loss) Other Comprehensive Income Loss Net Of Tax Total comprehensive loss Comprehensive Income Net Of Tax Fair value adjustments on embedded debt derivative with related party. Interest expense, related party Interest Expense Related Party Fair value adjustments on embedded debt derivative with related parties Fair Value Adjustments On Embedded Derivative With Related Party Reclassifications of temporary to permanent equity shares. Conversion of common stock into convertible preferred stock value. Temporary equity, conversion of common stock in to preferred stock, shares. Temporary equity, conversion of common stock in to preferred stock, value Conversion of common stock into convertible preferred stock shares Temporary equity preferred stock issued in exchange for note redemption, value. Temporary equity preferred stock issued in exchange for note redemption, shares. Temporary equity preferred stock issued during period, shares. Stock issued during period value common stock warrants. Stock issued during period shares common stock warrants. Statement Of Stockholders Equity [Abstract] 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 Deficit Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income [Member] Convertible preferred stock series ABCDEF. Convertible Preferred Stock (Series A-F) Convertible Preferred Stock Series A B C D E F [Member] Beginning balance Temporary equity, Beginning balance, shares Temporary Equity Shares Outstanding Temporary equity, Beginning balance Temporary Equity Carrying Amount Including Portion Attributable To Noncontrolling Interests Beginning balance, shares Shares Outstanding Stock-based compensation expense Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value Conversion of preferred stock into common stock Stock Issued During Period Value Conversion Of Convertible Securities Temporary equity, Conversion of preferred stock into common stock, shares Reclassifications Of Temporary To Permanent Equity Shares Temporary equity, Conversion of preferred stock into common stock Reclassifications Of Temporary To Permanent Equity Conversion of preferred stock into common stock, shares Stock Issued During Period Shares Conversion Of Convertible Securities Conversion of common stock into series AA preferred stock Conversion Of Common Stock Into Convertible Preferred Stock Value Temporary equity, Conversion of common stock into series AA preferred stock Temporary Equity Conversion Of Common Stock In To Preferred Stock Shares Temporary equity, Conversion of common stock into series AA preferred stock, shares Temporary Equity Conversion Of Common Stock In To Preferred Stock Value Conversion of common stock into series AA preferred stock, shares Conversion Of Common Stock Into Convertible Preferred Stock Shares Preferred stock issued in exchange for note redemption Temporary Equity Preferred Stock Issued In Exchange For Note Redemption Value Preferred stock issued in exchange for note redemption, shares Temporary Equity Preferred Stock Issued In Exchange For Note Redemption Shares Issuance of preferred stock Temporary Equity Stock Issued During Period Value New Issues Issuance of preferred stock, shares Temporary Equity Preferred Stock Issued During Period Shares Issuance of common stock, net of issuance costs Stock Issued During Period Value New Issues Issuance of common stock, net of issuance costs, shares Stock Issued During Period Shares New Issues Issuance of common stock warrants Stock Issued During Period Value Common Stock Warrants Issuance of common stock warrants, shares Stock Issued During Period Shares Common Stock Warrants Issuance of common stock related to Alvaxa acquisition Stock Issued During Period Value Acquisitions Temporary Equity, number of shares of stock issued during the period pursuant to acquisitions. Issuance of common stock related to Alvaxa acquisition Temporary Equity Stock Issued During Period Shares Acquisitions Temporary equity, value of stock issued pursuant to acquisitions during the period. Issuance of common stock related to Alvaxa acquisition Temporary Equity Stock Issued During Period Value Acquisitions Issuance of common stock related to Alvaxa acquisition, shares Stock Issued During Period Shares Acquisitions Ending balance Temporary equity, Ending balance, shares Temporary equity, Ending balance Ending balance, shares Accretion on marketable securities. Issuance of common stock for Alvaxa acquisition. Increase decrease in accrued interest. Capital proceeds relating to property and equipment. Insurance proceeds relating to property and equipment. Proceeds from paycheck protection program loan. Proceeds from exercise of common stock warrants and options. Proceeds from issuance of common stock upon initial public offering net of issuance costs. Noncash interest on financing. Statement Of Cash Flows [Abstract] Series AA convertible preferred stock. Series AA Convertible Preferred Stock Series A A Convertible Preferred Stock [Member] Series BB convertible preferred stock. Series BB Convertible Preferred Stock Series B B Convertible Preferred Stock [Member] Stock Conversion Description Conversion Of Stock By Unique Description [Axis] Conversion of Stock, Name Conversion Of Stock Name [Domain] Conversion of series A, B, C, D, E, F convertible preferred stock into common stock. Conversion of Series A, B, C, D, E, F Convertible Preferred Stock into Common Stock Conversion Of Series A B C D E F Convertible Preferred Stock Into Common Stock [Member] Conversion of series AA and BB convertible preferred stock into common stock. Conversion of Series AA and BB Convertible Preferred Stock into Common Stock Conversion Of Series A A And B B Convertible Preferred Stock Into Common Stock [Member] Conversion of common stock into series AA convertible preferred stock. Conversion of Common Stock into Series AA Convertible Preferred Stock Conversion Of Common Stock Into Series A A Convertible Preferred Stock [Member] Operating activities Net Cash Provided By Used In Operating Activities [Abstract] Net loss Profit Loss 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] Stock-based compensation expense Share Based Compensation Depreciation and amortization Depreciation Depletion And Amortization Accretion on debt Accretion Expense Accretion on marketable securities Accretion On Marketable Securities Fair value adjustments on embedded debt derivatives Interest on capital lease Finance Lease Interest Expense Issuance of common stock for Alvaxa acquisition Issuance Of Common Stock For Alvaxa Acquisition Loss on fixed asset disposition Gain on debt extinguishment Changes in operating assets and liabilities: Increase Decrease In Operating Capital [Abstract] Prepaid expenses and other current assets Increase Decrease In Prepaid Deferred Expense And Other Assets Deposits Increase Decrease In Deposit Other Assets Accounts payable and accrued liabilities Increase Decrease In Accounts Payable And Accrued Liabilities Accrued interest Increase Decrease In Accrued Interest Other liabilities Increase Decrease In Other Operating Liabilities Net cash used in operating activities Net Cash Provided By Used In Operating Activities Investing activities Net Cash Provided By Used In Investing Activities [Abstract] Purchases of property and equipment Payments To Acquire Property Plant And Equipment Capital proceeds relating to property and equipment Capital Proceeds Relating To Property And Equipment Insurance proceeds relating to property and equipment Insurance Proceeds Relating To Property And Equipment Purchases of short-term investments Payments To Acquire Short Term Investments Maturities and sales of short-term investments Proceeds From Sale Maturity And Collection Of Shortterm Investments Alvaxa IPR&D acquisition Payments To Acquire In Process Research And Development Net cash used in investing activities Net Cash Provided By Used In Investing Activities Financing activities Net Cash Provided By Used In Financing Activities [Abstract] Proceeds from the PPP loan Proceeds From Paycheck Protection Program Loan Proceeds from the exercise of common stock warrants and options Proceeds From Exercise Of Common Stock Warrants And Options Capital lease payments Finance Lease Principal Payments Proceeds on the issuance of convertible preferred stock Proceeds From Issuance Of Convertible Preferred Stock Proceeds from issuance of common stock upon initial public offering, net of issuance costs Proceeds From Issuance Of Common Stock Upon Initial Public Offering Net Of Issuance Costs Net cash provided by financing activities Net Cash Provided By Used In Financing Activities Net (decrease) increase in cash and cash equivalents Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect Cash and cash equivalents at beginning of period Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations Cash and cash equivalents at end of period Supplemental disclosure of noncash financing and investing information: Cash Flow Noncash Investing And Financing Activities Disclosure [Abstract] Property and equipment additions included in accounts payable and accrued liabilities Capital Expenditures Incurred But Not Yet Paid Issuance costs included in accounts payable and accrued liabilities Debt Issuance Costs Incurred During Noncash Or Partial Noncash Transaction Interest on financing Noncash Interest On Financing Conversion of stock Conversion Of Stock Amount Converted1 Convertible preferred stock issued in exchange for note redemption Stock Issued1 Organization Consolidation And Presentation Of Financial Statements [Abstract] ORGANIZATION AND OPERATIONS Organization Consolidation And Presentation Of Financial Statements Disclosure [Text Block] Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Investments Debt And Equity Securities [Abstract] MARKETABLE SECURITIES Investments In Debt And Marketable Equity Securities And Certain Trading Assets Disclosure [Text Block] Property Plant And Equipment [Abstract] PROPERTY AND EQUIPMENT, NET Property Plant And Equipment Disclosure [Text Block] Other Current Liabilities [Abstract] OTHER CURRENT LIABILITIES Other Liabilities Disclosure [Text Block] Debt Disclosure [Abstract] DEBT Debt Disclosure [Text Block] Fair Value Disclosures [Abstract] FAIR VALUE MEASUREMENTS Fair Value Disclosures [Text Block] Commitments And Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments And Contingencies Disclosure [Text Block] Equity [Abstract] EQUITY Stockholders Equity Note Disclosure [Text Block] Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] STOCK-BASED COMPENSATION Disclosure Of Compensation Related Costs Share Based Payments [Text Block] Compensation And Retirement Disclosure [Abstract] EMPLOYEE RETIREMENT PLAN Pension And Other Postretirement Benefits Disclosure [Text Block] Related Party Transactions [Abstract] RELATED-PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Income Tax Disclosure [Abstract] INCOME TAXES Income Tax Disclosure [Text Block] Earnings Per Share [Abstract] NET LOSS PER SHARE Earnings Per Share [Text Block] Disclosure of accounting policy for basis of presentation and principles of consolidation. Basis of Presentation and Principles of Consolidation Basis Of Presentation And Principles Of Consolidation Policy [Text Block] Disclosure of accounting policy for unaudited interim financial information. Unaudited interim financial information Unaudited Interim Financial Information Policy [Text Block] Use of Estimates Use Of Estimates Cash and Cash Equivalents Cash And Cash Equivalents Policy [Text Block] Marketable Securities Marketable Securities Policy Recently Issued Accounting Standards Updates New Accounting Pronouncements Policy Policy [Text Block] Summary of Marketable Securities Marketable Securities [Text Block] Summary of Property and Equipment, Net Property Plant And Equipment [Text Block] Other Liabilities Disclosure [Abstract] Summary of Other Current Liabilities Other Current Liabilities Table [Text Block] Schedule of Financial Assets And Liabilities Measured at Fair Value on Recurring Basis Schedule Of Fair Value Assets And Liabilities Measured On Recurring Basis Table [Text Block] Schedule of Reconciliation of Embedded Debt Derivatives Measured Fair Value on Recurring Basis Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] Schedule of Future Annual Minimum Payments Under Noncancellable Operating Lease Lessee Operating Lease Liability Maturity Table [Text Block] Schedule of Future Annual Minimum Payments Under Capitalized Lease Finance Lease Liability Maturity Table [Text Block] Warrant Warrant [Member] Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument Name [Domain] Equity and debt fundraising events. Equity and Debt Fundraising Events Equity And Debt Fundraising Events [Member] Summary of Common Stock Warrant Activity Schedule Of Stockholders Equity Note Warrants Or Rights [Text Block] Summary of Stock Option Award Activity Schedule Of Share Based Compensation Stock Options Activity Table [Text Block] Summary of Fair Value Assumptions and Methodology Schedule Of Share Based Payment Award Stock Options Valuation Assumptions Table [Text Block] Summary of Stock-Based Compensation Expense Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Text Block] Schedule of Basic and Diluted Net Loss Per Share Schedule Of Earnings Per Share Basic And Diluted Table [Text Block] Potentially Dilutive Securities Excluded from Calculation of Diluted Net Loss Per Share Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Text Block] Subsidiary Or Equity Method Investee Sale Of Stock By Subsidiary Or Equity Investee [Table] Subsidiary Or Equity Method Investee Sale Of Stock By Subsidiary Or Equity Investee [Table] Sale of Stock Subsidiary Sale Of Stock [Axis] Sale of Stock Sale Of Stock Name Of Transaction [Domain] IPO I P O [Member] Subsidiary Sale Of Stock [Line Items] Subsidiary Sale Of Stock [Line Items] Net loss Proceeds from issuance initial public offering, net of issuance costs. Common stock shares issued and sold Share price per share Shares Issued Price Per Share Proceeds from issuance initial public offering Proceeds From Issuance Initial Public Offering Net proceeds after deducting underwriting discounts and estimated offering expenses Proceeds From Issuance Initial Public Offering Net Of Issuance Costs Cash, cash equivalents, and marketable securities. Cash, cash equivalents and marketable securities Cash Cash Equivalents And Marketable Securities Reverse stock split description Stockholders Equity Reverse Stock Split Reverse stock split conversion ratio Stockholders Equity Note Stock Split Conversion Ratio1 New Accounting Pronouncements Or Change In Accounting Principle [Table] New Accounting Pronouncements Or Change In Accounting Principle [Table] Accounting Standards Update Adjustments For New Accounting Pronouncements [Axis] Accounting Standards Update Type Of Adoption [Member] ASU 2018-13 Accounting Standards Update201813 [Member] ASU 2019-12 Accounting Standards Update201912 [Member] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] New Accounting Pronouncements Or Change In Accounting Principle [Line Items] Change in accounting principle, accounting standards update, adopted Change In Accounting Principle Accounting Standards Update Adopted Change in accounting principle, accounting standards update, adoption date Change In Accounting Principle Accounting Standards Update Adoption Date Change in accounting principle, accounting standards update, immaterial effect Change In Accounting Principle Accounting Standards Update Immaterial Effect Marketable Securities [Table] Marketable Securities [Table] Investment Type Investment Type [Axis] Investments Investment Type Categorization [Member] Marketable Security. Marketable Securities Marketable Security [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] Commercial Paper Commercial Paper [Member] Corporate Bonds Corporate Bond Securities [Member] U.S. Government Agencies U S Government Agencies Debt Securities [Member] Marketable Securities [Line Items] Marketable Securities [Line Items] Amortized Cost Available For Sale Debt Securities Amortized Cost Basis Unrealized Gains Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax Unrealized Losses Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax Fair Value Available for sale securities contractual maturity term. Statistical Measurement Range [Axis] Statistical Measurement Range [Member] Minimum Minimum [Member] Maximum Maximum [Member] Corporate bonds and U.S. Government agencies securities. Corporate Bonds and U.S. Government Agencies Corporate Bonds And U S Government Agencies Securities [Member] Commercial paper and U.S. government agencies. Commercial Paper and U.S. Government Agencies Commercial Paper And U S Government Agencies [Member] Marketable securities remaining maturity term Available For Sale Securities Contractual Maturity Term Marketable securities, fair value Available for sale securities unrealized loss position contractual maturity term. Marketable securities unrealized loss position, maturity term Available For Sale Securities Unrealized Loss Position Contractual Maturity Term Marketable securities, unrealized loss position, fair value Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Marketable securities, unrealized loss position, fair value Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Impairment of investments Impairment Of Investments Schedule Of Property Plant And Equipment [Table] Schedule Of Property Plant And Equipment [Table] Long-Lived Tangible Asset Property Plant And Equipment By Type [Axis] Long-Lived Tangible Asset Property Plant And Equipment Type [Domain] Research equipment. Research Equipment Research Equipment [Member] Office equipment and furniture. Office Equipment and Furniture Office Equipment And Furniture [Member] Leaseholder improvement. Leaseholder Improvement Leaseholder Improvement [Member] Property Plant And Equipment [Line Items] Property Plant And Equipment [Line Items] Total property and equipment Property Plant And Equipment Gross Less accumulated depreciation and amortization Accumulated Depreciation Depletion And Amortization Property Plant And Equipment Property and equipment, net Depreciation and amortization expense Compensation and benefits Employee Related Liabilities Current Other Other Sundry Liabilities Current Total other current liabilities Debt Instrument [Table] Debt Instrument [Table] Paycheck protection program loan. PPP Loan Paycheck Protection Program Loan [Member] Extinguishment of Debt Extinguishment Of Debt [Axis] Extinguishment of Debt, Type Extinguishment Of Debt Type [Domain] Debt forgiveness. Debt Forgiveness Debt Forgiveness [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt instrument, face amount Debt Instrument Face Amount Debt instrument, interest rate Debt Instrument Interest Rate Stated Percentage Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Table] Money Market Funds Money Market Funds [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] Measurement Frequency Fair Value By Measurement Frequency [Axis] Measurement Frequency Fair Value Measurement Frequency [Domain] Fair Value Measurements Recurring Basis Fair Value Measurements Recurring [Member] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] Assets: Assets Fair Value Disclosure [Abstract] Cash equivalents fair value disclosure Cash And Cash Equivalents Fair Value Disclosure Investments fair value disclosure Investments Fair Value Disclosure Total Assets Fair Value Disclosure Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Other income Other Income [Member] Fair value adjustments on embedded debt derivatives Fair value of embedded derivative Embedded Derivative Fair Value Of Embedded Derivative Asset Fair Value of Recurring Balance at December 31, 2019 Fair Value Measurement With Unobservable Inputs Reconciliations Recurring Basis Liability Value Change in fair value Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Period Increase Decrease Settlement Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Settlements Balance at September 30, 2020 Fair value, transfer of assets, from level 1 to level 2 Fair Value Assets Level1 To Level2 Transfers Amount Fair value, transfer of assets from level 2 to level 1 Fair Value Assets Level2 To Level1 Transfers Amount Fair value, transfer of liabilities, from level 1 to level 2 Fair Value Liabilities Level1 To Level2 Transfers Amount Fair value, transfer of liabilities from level 2 to level 1 Fair Value Liabilities Level2 To Level1 Transfers Amount Fair value, transfer of assets into level 3 Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 Fair value, transfer of assets out of level 3 Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 Fair value, transfer of liabilities into level 3 Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Into Level3 Fair value, transfer of liabilities out of level 3 Fair Value Measurement With Unobservable Inputs Reconciliation Liability Transfers Out Of Level3 Lease expiration year. Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Table] Sale Leaseback Transaction [Line Items] Sale Leaseback Transaction [Line Items] Lease expiration year Lease Expiration Year Operating lease, expense Operating Lease Expense Lessee operating lease liability payments due year six. Remainder of 2021 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 2027 Lessee Operating Lease Liability Payments Due Year Six Total operating lease obligations Lessee Operating Lease Liability Payments Due Letters of credit agreements outstanding amount Letters Of Credit Outstanding Amount Lease payment, term. Finance lease, principal payments Finance lease, term Lessee Finance Lease Term Of Contract1 Lease payment, term Lease Payment Term Percentage of equipment cost. Additional renew of lease term. Sale of equipment Sale Leaseback Transaction Net Book Value Percentage of equipment cost Percentage Of Equipment Cost Additional renew of lease term Additional Renew Of Lease Term Remainder of 2021 Finance Lease Liability Payments Remainder Of Fiscal Year 2022 Finance Lease Liability Payments Due Next Twelve Months 2023 Finance Lease Liability Payments Due Year Two 2024 Finance Lease Liability Payments Due Year Three 2025 Finance Lease Liability Payments Due Year Four Total capital lease obligations Finance Lease Liability Payments Due Less amount representing interest Finance Lease Liability Undiscounted Excess Amount Present value of minimum capital lease obligations Finance Lease Liability Number of former officers. Loss contingency allegations claims. Number of former officers Number Of Former Officers Loss contingency allegations claims Loss Contingency Allegations Claims Loss contingency, allegations Loss Contingency Allegations Convertible preferred stock shares issued and sold. Convertible preferred stock par or stated value per share. Schedule Of Stock By Class [Table] Schedule Of Stock By Class [Table] Series BB Convertible Preferred Stock Issuance. Series BB Convertible Preferred Stock Issuance Series B B Convertible Preferred Stock Issuance [Member] Class Of Stock [Line Items] Class Of Stock [Line Items] Convertible preferred stock shares issued and sold Convertible Preferred Stock Shares Issued And Sold Convertible preferred stock per share Convertible Preferred Stock Par Or Stated Value Per Share Partial exercise of the underwriters’ option to purchase additional shares. Accretion on debt. Net proceeds after deducting underwriting discount. Common stock shares issued and sold Sale Of Stock Number Of Shares Issued In Transaction Partial exercise of the underwriters option to purchase additional shares Partial Exercise Of The Underwriters Option To Purchase Additional Shares Sale of Stock, Price Per Share Sale Of Stock Price Per Share Aggregate gross proceeds from issuance of initial public offering Accretion On Debt Net proceeds after deducting underwriting discounts Net Proceeds After Deducting Underwriting Discounts Convertible preferred stock converted to common stock. Outstanding preferred stock converted into aggregate shares of common stock Convertible Preferred Stock Converted To Common Stock Preferred stock, shares authorized Preferred Stock Shares Authorized Number of common stock warrants granted. Number of common stock warrants exercised. Number of common stock warrants expired. Number of Common Stock Warrants Outstanding, Beginning Balance Class Of Warrant Or Right Outstanding Number of Common Stock Warrants, Granted Number Of Common Stock Warrants Granted Number of Common Stock Warrants, Exercised Number Of Common Stock Warrants Exercised Number of Common Stock Warrants, Expired Number Of Common Stock Warrants Expired Number of Common Stock Warrants Outstanding, Ending Balance Class of warrant or right exercise price of warrants or rights granted. Class of warrant or right exercise price of warrants or rights exercised. Class of warrant or right exercise price of warrants or rights expired. Weighted-Average Exercise Price Outstanding, Beginning Balance Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 Weighted Average Exercise Price, Granted Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Granted Weighted Average Exercise Price, Exercised Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Exercised Weighted Average Exercise Price, Expired Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Expired Weighted-Average Exercise Price Outstanding, Ending Balance Class of warrant or right outstanding weighted-average remaining contractual term. Weighted-Average Remaining Contractual Term, Outstanding Class Of Warrant Or Right Outstanding Weighted Average Remaining Contractual Term Class of warrant or right outstanding aggregate intrinsic value. Aggregate Intrinsic Value Outstanding Class Of Warrant Or Right Outstanding Aggregate Intrinsic Value Number of capital stock outstanding percentage. 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 twenty one Equity Incentive Plan. 2021 Equity Incentive Plan Two Thousand Twenty One Equity Incentive Plan [Member] Two thousand twenty one employee stock purchase plan. 2021 Employee Stock Purchase Plan Two Thousand Twenty One Employee Stock Purchase Plan [Member] Two thousand eighteen equity incentive plan. 2018 Plan Two Thousand Eighteen Equity Incentive Plan [Member] Common stock warrants. Common Stock Warrants Common Stock Warrants [Member] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Shares reserved for issuance Common Stock Capital Shares Reserved For Future Issuance Number of capital stock outstanding percentage Number Of Capital Stock Outstanding Percentage Percentage of number of shares of capital stock outstanding on last day of preceding year. Percentage of number of shares of capital stock outstanding on last day of preceding year Percentage Of Number Of Shares Of Capital Stock Outstanding On Last Day Of Preceding Year Recognized share-based compensation expense Allocated Share Based Compensation Expense Purchase price of fair value common stock, percent Sharebased Compensation Arrangement By Sharebased Payment Award Purchase Price Of Common Stock Percent Grant dates at weighted average fair value Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price Options available for grant Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross Number of Stock Options, Outstanding balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number Number of Stock Options, Granted Number of Stock Options, Exercised Stock Issued During Period Shares Stock Options Exercised Number of Stock Options, Forfeited Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period Number of Stock Options, Expired Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period Number of Stock Options, Outstanding balance Number of Stock Options, Exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number Number of Stock Options, Options expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number Weighted-Average Exercise Price, Outstanding balance Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price Weighted-Average Exercise Price, Exercised Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Forfeited Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price Weighted-Average Exercise Price, Expired Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price Weighted-Average Exercise Price,Outstanding balance Weighted-Average Exercise Price, Exercisable Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price Weighted-Average Exercise Price, Options expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price Weighted-Average Remaining Contractual Term, Outstanding balance Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 Weighted-Average Remaining Contractual Term, Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 Weighted-Average Remaining Contractual Term, Options expected to vest Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 Aggregate Intrinsic Value, Outstanding Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value Aggregate Intrinsic Value, Exercisable Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 Aggregate Intrinsic Value, Options expected to vest Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value Options vested Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 Unrecognized stock-based compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Stock Options Weighted-average period Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 Class of warrant or right outstanding and exercisable. Number of Common Stock Warrants, Exercised Number of Common Stock Warrants Outstanding and Exercisable, Ending Balance Class Of Warrant Or Right Outstanding And Exercisable Class of warrant or right exercise price of warrants or rights outstanding and exercisable. Weighted-Average Exercise Price, Exercised Weighted-Average Exercise Price Outstanding and Exercisable, Ending Balance Class Of Warrant Or Right Exercise Price Of Warrants Or Rights Outstanding And Exercisable Class of warrant or right outstanding and exercisable weighted-average remaining contractual term. Weighted-Average Remaining Contractual Term Outstanding Weighted-Average Remaining Contractual Term Outstanding and Exercisable Class Of Warrant Or Right Outstanding And Exercisable Weighted Average Remaining Contractual Term Class of warrant or right outstanding and exercisable aggregate intrinsic value. Aggregate Intrinsic Value Outstanding Aggregate Intrinsic Value Outstanding and Exercisable Class Of Warrant Or Right Outstanding And Exercisable Aggregate Intrinsic Value Unrecognized stock-based compensation expense Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options Volatility, Minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum Volatility Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Volatility, Maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum Expected life (years) Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 Risk-free interest rate, Minimum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum Risk-free interest rate, Maximum Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum Dividend rate Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate 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] Research and Development Research And Development 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 expense Defined contribution plan accrued expenses. Schedule Of Defined Benefit Plans Disclosures [Table] Schedule Of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Percentage of company matching contributions of employee's base salary Defined Contribution Plan Employer Matching Contribution Percent Company's matching contributions vesting percentage Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage Accrued expense Defined Contribution Plan Accrued Expenses Related party transaction consulting service fee. Related party transaction consulting service fee payment. Payment for related party transaction. Schedule Of Related Party Transactions By Related Party [Table] Schedule Of Related Party Transactions By Related Party [Table] Related Party Transaction Related Party Transaction [Axis] Related Party Transaction Related Party Transaction [Domain] Consulting Agreement. Consulting Agreement Consulting Agreement [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Consulting services fee Related Party Transaction Consulting Service Fee Consultation service fee payment Related Party Transaction Consulting Service Fee Payment Payment for consulting services Payment For Related Party Transaction Remaining consultation fee recorded as expense Related Party Transaction Expenses From Transactions With Related Party Provision for income taxes Income Tax Expense Benefit 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] Stock Options to Purchase Common Stock Employee Stock Option [Member] Warrants issued to employees and contractor to purchase common stock. Warrants Issued to Employees and Contractor to Purchase Common Stock Warrants Issued To Employees And Contractor To Purchase Common Stock [Member] Warrants issued related to convertible notes and other equity agreements. Warrants Issued Related to Convertible Notes and Other Equity Agreements Warrants Issued Related To Convertible Notes And Other Equity Agreements [Member] Convertible Preferred Stock Cumulative Preferred Stock [Member] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] Potentially dilutive securities excluded from calculation of diluted net loss per share Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount