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Disclosure - Related Party Transactions - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 995915 - Disclosure - Subsequent Events - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink Issuance Of Common Stock Warrants Issuance of common stock warrants. Issuance of common stock warrants (net of issuance cost) Increase (Decrease) in Interest Payable, Net Interest payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Issuance of common stock shares under equity plan awards. Issuance of Common Stock Shares under Equity Plan Awards Issuance of common stock under equity plan awards (in shares) Long-Term Debt, Excluding Current Maturities, Total Long-Term Debt, Excluding Current Maturities Loan payable (net of discount and issuance costs of $XXX and $164, respectively) Loan payable (net of discount and issuance costs of nil and nil, respectively) Plan Name [Axis] Plan Name [Axis] Grantee Status [Domain] Grantee Status [Domain] Entity Current Reporting Status Entity Current Reporting Status CorporateTaxesPaid CorporateTaxesPaid Cash paid for business taxes Operating expenses: Operating Expenses [Abstract] Fair Value, Inputs, Level 2 [Member] Level 2 Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Common Stock, Shares Authorized Common stock, shares authorized June Two Thousand Twenty Five Pre Funded Warrants [Member] June 2025 Pre-Funded Warrants. June 2025 Pre Funded Warrants ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsassumedInReverseRecapitalizationInPeriodWeightedAverageExercisePrice ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsassumedInReverseRecapitalizationInPeriodWeightedAverageExercisePrice Assumed in reverse recapitalization (in dollars per share) Preferred Stock, Voting Rights Voting rights of preferred stock Document Fiscal Period Focus Document Fiscal Period Focus Asset acquisition, stock issued as consideration Asset Acquisition, Consideration Transferred, Shares, Equity Interest Issued and Issuable Asset acquisition, consideration transferred, shares, equity interest issued and issuable. Shares issued to Erigen Entity Shell Company Entity Shell Company Shares Outstanding Temporary Equity, Shares Outstanding Grantee Status [Axis] Grantee Status [Axis] Other Accrued Liabilities, Current Accrued other liabilities Loan discounts Debt Instrument, Unamortized Discount, Noncurrent Debt Instrument, Unamortized Discount, Noncurrent Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalent Cash and cash equivalents Notes Payable, Current Notes Payable, Current, Total Current loan payable Proceeds From Issuance of Common Stock and Common Stock Warrants to Related Party Net of Issuance Costs Proceeds from issuance of common stock and common stock warrants to related party net of issuance costs. Proceeds from issuance of common stock and common stock warrants to related party net of issuance costs Common Stock, Shares, Issued Common stock, shares issued Asset Class [Domain] Asset Class [Domain] Statement [Table] Statement [Table] Proceeds Net of Issuance Cost Proceeds from Issuance of Redeemable Convertible Preferred Stock Asset Acquisition Availability Remained Under Funding Commitment Asset acquisition availability remained under funding commitment. Asset acquisition availability remained under funding commitment Research and Development Asset Acquired in Transaction Other than Business Combination or Joint Venture Formation, Writeoff Acquired in-process research and development Share-based compensation arrangement by share-based payment award, purchase price of common stock, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Statement [Line Items] Statement [Line Items] Warrant [Member] Warrant Entity Filer Category Entity Filer Category Liabilities and Equity Total liabilities and stockholders’ equity Debt Instrument [Line Items] Debt Instrument [Line Items] Long-Term Debt, Current Maturities Long-Term Debt, Current Maturities, Total Current loan payable (net of discount and issuance costs of $38 and $74, respectively) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Severance Costs Cash expenditures related to one-time severance payments Severance payments Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents Shares Issued, Price Per Share Preferred stock price per share Subsequent Event [Line Items] Cash paid for income taxes Income Taxes Paid Geographical [Domain] Statement Geographical Axis [Domain] Common Stock Warrants to Related Parties Issuance Cost Common Stock Warrants to Related Parties Issuance Cost Common Stock Warrants to Related Parties Issuance Cost Asset Acquisition, Share Price Asset acquisition, share price. Closing price of common stock on the acquisition date Asset acquisition, stock price per share Share-based compensation arrangement by share-based payment award, period of automatic increase to outstanding stock maximum Share-based Compensation Arrangement by Share-based Payment Award, Period of Automatic Increase to Outstanding Stock Maximum Share-based Compensation Arrangement by Share-based Payment Award, Period of Automatic Increase to Outstanding Stock Maximum Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Tranche C Term Loan Tranch C Term Loan Member Tranche C Term Loan [Member] Tranche C term loan. Letter Agreement [Member] Letter Agreement. Letter Agreement Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Granted (in shares) Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Summary of Basis in Diluted Net Loss Per Share Earnings Per Share, Basic, Total Earnings Per Share, Basic Net loss per share attributable to common stockholders - basic Net loss per share of common stock and pre-funded warrants, basic Non-cash interest and other expense, net Noncash interest and other expense, net Noncash interest and other expense, net Ann Arbor Michigan Member Ann Arbor Michigan Member [Member] Ann Arbor, Michigan Retirement Benefits [Text Block] Retirement Plan Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Outstanding at end (in shares) Outstanding at beginning (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Liabilities, Current Total current liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Dividend record date Dividends Payable, Date of Record Series A Convertible Preferred Stock Member Series A Convertible Preferred Stock Member [Member] Series A Litigation Expense Amount Covered By Insurance Litigation Expense Amount Covered By Insurance Amount covered by insurance Debt Instrument, Number of Tranches Debt Instrument, Number of Tranches Number of tranches Payments of debt issuance costs Payments of Debt Issuance Costs Payments of Debt Issuance Costs Entity Small Business Entity Small Business Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit) Accumulated deficit Erigen Assets [Member] Erigen assets. Erigen Assets Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Cancelled and forfeited (in shares) Stock price (in dollars per share) Sale of Stock, Price Per Share Prepaid Research and Development Costs, Current Prepaid Research and Development Costs, Current Prepaid research and development costs Organization, Consolidation and Presentation of Financial Statements [Abstract] Asset acquisition transaction costs Asset Acquisition Transaction Costs Asset acquisition transaction costs. Transaction costs Amendment Flag Amendment Flag Loss Contingencies [Line Items] Loss Contingencies [Line Items] Warrants issued Class of Warrant or Right, Number of Securities Called by Warrants or Rights Liabilities and Equity [Abstract] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Cash used in operating activities Increase (Decrease) in Operating Lease Liability Operating lease liabilities Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Common Stock [Member] Common Stock Issuance of common stock to related parties for cash (net of issuance costs) Issuance of Common Stock to Related Parties For Cash Issuance of common stock to related parties for cash. Defined Contribution Plan, Employer Discretionary Contribution Amount Defined contribution plan, employer discretionary contribution amount Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted (in dollars per share) Lessee, Operating Lease, Liability, to be Paid, Year Three 2029 Less accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Asset Acquisition, Consideration Transferred Fair Value Of Shared Issued Asset acquisition, consideration transferred fair value of shared issued. Fair value of shared issued Entity Address, Address Line One Entity Address, Address Line One Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of Grant Date Fair Value Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Earnings Per Share [Abstract] Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Operating Lease, Right-of-Use Asset Operating lease right-of-use assets Class of Warrant or Right [Axis] Document Type Document Type Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block] Summary of Information About Stock Options Outstanding Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Entity Central Index Key Entity Central Index Key Asset Acquisition [Table] Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Net decrease in cash, cash equivalents and restricted cash Subsequent Event Type [Domain] Fair value of warrants Fair Value Adjustment of Warrants Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities excluded from computation of earnings APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition Stock-based compensation Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Proceeds from Issuance of Warrants Proceeds from the issuance of common stock, pre-funded warrants and common stock warrants, net of issuance costs Liabilities [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Restructuring and Related Activities, Initiation Date Restructuring activities, plan adopted date Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected volatility, maximum Asset Acquisition, Contingent Consideration, Liability Asset Acquisition, Contingent Consideration, Liability, Total Asset aquisition expensed Net proceeds from sales of common stock Net proceeds from issuance of common stock. Net Proceeds From Issuance Of Common Stock Restructuring and Related Activities, Completion Date Effective date of workforce reduction Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercise of stock options (in shares) Exercised (in shares) Debt Disclosure [Abstract] Restructuring And Related Cost Number Of Full Time Employees Restructuring and related cost number of full time employees. Number of full time employees Schedule of Prepaid Expenses and Other Current Asset Schedule Of Prepaid Expenses And Other Current Asset Schedule Of Prepaid Expenses And Other Current Asset [Table Text Block] Total Accrued Liabilities, Current Accrued expenses Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Long-Term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Share Based Compensation Volatility Weighting Peer Historical Rate Share Based Compensation Volatility Weighting Peer Historical Rate Industry peers volatility rate Document Quarterly Report Document Quarterly Report Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Entity Address, State or Province Entity Address, State or Province Amended and restated two thousand twenty three equity incentive plan. Amended and Restated Two Thousand Twenty Three Equity Incentive Plan [Member] Amended and Restated 2023 Equity Incentive Plan Asset Acquisition [Domain] Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Preferred Stock, Shares Outstanding, Ending Balance Preferred Stock, Shares Outstanding, Beginning Balance Common stock, capital shares reserved for future issuance Common Stock, Capital Shares Reserved for Future Issuance Class of Warrant or Right [Domain] Geographical [Axis] Statement Geographical Axis [Axis] Common stock warrant dividend Common stock warrant dividend. Subsequent Event [Member] Subsequent Event Jefferies LLC Jefferies LLC [Member] Jefferies LLC Estimated Litigation Liability, Current Accrued legal settlement Share-based compensation arrangement by share-based payment award, number of additional shares authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Other noncurrent assets Other Assets, Noncurrent Other non-current assets Antidilutive Securities [Axis] Antidilutive Securities [Axis] Interest expense Interest Expense, Debt, Total Interest Expense, Debt Interest expense, debt Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Schedule of Stock Based Compensation Expense AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Loss Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Schedule of Total Cost of Asset Acquisition Asset Acquisition, Contingent Consideration [Table Text Block] Non-cash lease expense Noncash lease expense Noncash lease expense Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount Net Carrying Value Prepayment amount Payment for Debt Extinguishment or Debt Prepayment Cost Loan mature date Debt Instrument, Maturity Date Minimum [Member] Minimum Current assets: Assets, Current [Abstract] Series A Warrants Series A Warrants [Member] Series a warrants. Fair Value, Inputs, Level 3 [Member] Level 3 At-The-Market Program At-The-Market Program [Member] At-The-Market Program Segment Reporting [Abstract] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Current liabilities: Liabilities, Current [Abstract] Tranche A Term Loan Tranch A Term Loan Member Tranche A Term Loan [Member] Tranche A term loan. Series B Convertible Preferred Stock Member Series B Convertible Preferred Stock Member [Member] Series B Related Party Transactions [Abstract] Shares, Outstanding Ending balance (in shares) Beginning balance (in shares) Pre-Funded Warrant [Member] Pre-Funded Warrant [Member]. Pre-Funded Warrant Proceeds from Stock Plans Proceeds from the issuance of common stock under equity plan awards Series a junior participating preferred purchase rights. Series A Junior Participating Preferred Purchase Rights [Member] Series A Junior Participating Preferred Purchase Rights Commitments and contingencies (Note 5) Commitments and Contingencies Stock-Based Compensation Shareholders' Equity and Share-Based Payments [Text Block] General and Administrative Expense [Member] General and Administrative Expense Operating Lease, Liability Present value of operating lease obligations Present value of operating lease obligations Aggregate success bonuses Deferred Compensation Liability, Current Deferred Compensation Liability, Current, Total Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Reverse stock split Stockholders' Equity, Reverse Stock Split Restricted Cash, Current Insurance recovery of legal settlement Purchase Agreement Purchase Agreement [Member] Purchase Agreement. Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net loss Net loss Legal settlement Litigation Settlement Litigation settlement. Long-Term Debt, Type [Domain] Long-term Debt, Type [Domain] Loss Contingencies [Table] Loss Contingencies [Table] Weighted Average Number of Shares Outstanding, Basic Weighted-average shares used in computing basic net loss per share Weighted-average shares used in computing basic net loss per share Weighted-average shares of common stock and pre-funded warrants outstanding, basic Document Information [Line Items] Document Information [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Segment Reporting, Expense Information Used by CODM, Description Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Asset acquisition, effective date Asset Acquisition, Effective Date of Acquisition Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Tranche B Term Loan Tranch B Term Loan Member Tranche B Term Loan [Member] Tranche B term loan. Subsequent Events [Text Block] Subsequent Events Asset Purchase Agreement [Member] Asset purchase agreement. Asset Purchase Agreement O 2026 Q4 Dividends [Member] O 2026 Q4 dividends. O 2026 Q4 Dividends Long-Term Debt, Total Long-Term Debt Long-term debt Related Party Transactions Disclosure [Text Block] Related Party Transactions Series B One Convertible Preferred Stock Member Series B One Convertible Preferred Stock Member [Member] Series B-1 Debt instrument interest term Debt Instrument, Interest Rate Terms Common stock warrants Common Stock Warrants [Member] Common stock warrants. Reversal Of Factor Deposit Reversal of factor deposit. Reversal of factor deposit Stockholders' Equity Attributable to Parent, Total Equity, Attributable to Parent Ending balance Beginning balance Convertible preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, par or stated value per share Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Factor deposit paid Factor Deposit Paid Factor deposit paid. Statement of Stockholders' Equity [Abstract] Factor Services Amounts Incurred or Payable Factor services amounts incurred or payable. Factor services amounts incurred or payable Series A Preferred Stock [Member] Series A Participating Preferred Stock Use of Estimates, Policy [Policy Text Block] Use of Estimates Leasehold Improvements [Member] Leasehold improvements Entity Address, Address Line Two Fair Value Disclosures [Text Block] Fair Value Measurements Asset acquisition, stock to be issued Asset Acquisition Shares Equity Interest Yet To Be Issued Asset acquisition shares equity interest yet to be issued. Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Other Assets, Current Other current assets Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] In Process Research and Development [Member] In Process Research and Development Plan Name [Domain] Plan Name [Domain] Share-Based Compensation Arrangement by Share-Based Payment Award, Accelerated Vesting, Number Accelarated vesting of stock options Credit Facility [Axis] Credit Facility [Axis] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation Less: Weighted-average unvested restricted shares and shares subject to repurchase Area of Real Estate Property Area of property (in sqft) Entity Address, City or Town Entity Address, City or Town Number of Reportable Segments Number of reportable segment Security Exchange Name Security Exchange Name Credit Facility [Domain] Credit Facility [Domain] Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross Property and equipment Temporary Equity [Table Text Block] Summary of Convertible Preferred Stock Counterparty Name [Axis] Counterparty Name [Axis] Exercise of pre-funded warrants Exercise Of Pre-funded Warrants Exercise of pre-funded warrants. Net of discount and issuance costs, Current Debt Issuance Costs, Current, Net Debt Issuance Costs, Current, Net, Total Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Share-Based Payment Arrangement, Employee [Member] Share-based Payment Arrangement, Employee Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Total Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash at beginning of period Interest Paid, Excluding Capitalized Interest, Operating Activity Cash paid for interest Statistical Measurement [Domain] Statistical Measurement [Domain] Class of Warrant or Right, Exercise Price of Warrants or Rights Exercise price Assets, Current Total current assets Share-Based Payment Arrangement, Expense Stock-based compensation expense Noncash or Part Noncash Acquisition, Fixed Assets Acquired Property and equipment in accounts payable Document Period End Date Document Period End Date Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Weighted Average Volatility Rate Title of Individual [Axis] Title and Position [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Remained available for issuance of common stock Remained available for issuance of cmmon stock. Remained Available for issuance of Common stock Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Statement of Financial Position [Abstract] Proceeds From Issuance Of Common Stock Pre Funded Warrants and Common Stock Warrants Net of Issuance Costs Proceeds from issuance of common stock pre funded warrants and common stock warrants net of issuance costs. Proceeds from issuance of common stock, pre-funded warrants and common stock warrants, net of issuance costs Antidilutive Security, Excluded EPS Calculation [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Class of Stock [Axis] Class of Stock [Axis] In Process Research and Development, Policy [Policy Text Block] Acquired In-Process Research and Development Expenses Liabilities Total liabilities Lessee, Operating Lease, Liability, to be Paid, Year Two 2028 Issuance Of Pre-Funded Warrant Value Issuance of pre-funded warrant value. Issuance of pre-funded warrants, (net of issuance costs) Share-based compensation arrangement by share-based payment award, maximum number of shares available for grant per year Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Available for Grant Per Year Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares Available for Grant Per Year Indefinite-Lived Intangible Assets, Major Class Name [Domain] Weighted Average Number of Shares Outstanding, Diluted Weighted-average shares used in computing diluted net loss per share Weighted-average shares of common stock and pre-funded warrants outstanding, diluted Entity File Number Entity File Number Related Party Deposit Liabilities Factor Invested Cover [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, Minimum South San Francisco California Member South San Francisco California Member [Member] South San Francisco, California Waiver Off Amount Payable Waiver off amount payable. Waiver off amount payable under Factor MSA Value Added Tax Receivable Refund of VAT taxes Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Total Share-based compensation arrangement by share-based payment award, percentage of outstanding stock maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Percentage of Outstanding Stock Maximum Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] ThersholdIndexRate Thershold index rate ThersholdIndexRate ThersholdIndexRate Number of operating segment Number of Operating Segments Sale of Stock [Domain] Sale of Stock [Domain] Segment Reporting Disclosure [Text Block] Segment Reporting General and Administrative Expense, Total General and Administrative Expense General and administrative General and administrative expense Percentage Of Beneficial Ownership Limitation Of Class Of Warrant Exercisable Only For Cash Percentage of beneficial ownership limitation of class of warrant exercisable only for cash. Percentage of beneficial ownership limitation of class of warrant exercisable only for cash Stock Issued During Period, Shares, Acquisitions Issuance of common stock in consideration of acquisition (in Share) Temporary Equity, Liquidation Preference Aggregate Liquidation Amount Subsequent Event [Table] Share-based compensation arrangement by share-based payment award, shares issued in period Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Asset acquisition, maximum funding commitment Asset Acquisition Maximum Funding Commitment Asset acquisition maximum funding commitment. 2019 Employee Stock Purchase Plan 2019 Employee Stock Purchase Plan [Member] 2019 Employee Stock Purchase Plan Operating Lease, Expense Rent expense Accrued clinical trial liability AccruedClinicalTrialLiability AccruedClinicalTrialLiability Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Future Minimum Rental Payments under Operating Leases with Noncancelable Terms Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Stock Issued During Period, Shares, Conversion of Convertible Securities Number of shares purchase from preferred stock Share-based compensation arrangement by share-based payment award, award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, Minimum Depreciation Depreciation, Total Depreciation expense Lessee, Operating Lease, Term of Contract Term of contract Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Common Stock, Shares, Outstanding Common stock, shares outstanding Current loan payable (net of discount and issuance costs of $58 and nil, respectively) Operating Lease, Liability, Current Current operating lease liabilities Less: current portion Brisbane California. 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