75000 - Document - Document and Entity Information
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75010 - Statement - Consolidated Balance Sheets
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75020 - Statement - Consolidated Balance Sheets (Parenthetical)
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75030 - Statement - Consolidated Statements of Operations and Comprehensive Loss
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75040 - Statement - Consolidated Statements of Convertible Preferred Stock and Stockholders' Equity
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75050 - Statement - Consolidated Statements of Cash Flows
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995457 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance
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995467 - Disclosure - Organization and Summary of Significant Accounting Policies
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995477 - Disclosure - Collaboration and License Agreements
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995487 - Disclosure - California Institute for Regenerative Medicine Award
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995497 - Disclosure - Investments
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995507 - Disclosure - Fair Value Measurements
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995517 - Disclosure - Property and Equipment
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995527 - Disclosure - Accrued Expenses
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995537 - Disclosure - Leases
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995547 - Disclosure - Convertible Preferred Stock and Stockholders' Equity
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995557 - Disclosure - Income Taxes
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995567 - Disclosure - Segment Reporting
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995577 - Disclosure - Employee Benefits
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995587 - Disclosure - Commitments and Contingencies
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995597 - Disclosure - Subsequent Events
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995607 - Disclosure - Organization and Summary of Significant Accounting Policies (Policies)
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995617 - Disclosure - Organization and Summary of Significant Accounting Policies (Tables)
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995627 - Disclosure - Collaboration and License Agreements (Tables)
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995637 - Disclosure - Investments (Tables)
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995647 - Disclosure - Fair Value Measurements (Tables)
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995657 - Disclosure - Property and Equipment (Tables)
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995667 - Disclosure - Accrued Expenses (Tables)
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995677 - Disclosure - Leases (Tables)
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995687 - Disclosure - Convertible Preferred Stock and Stockholders' Equity (Tables)
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995697 - Disclosure - Income Taxes (Tables)
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995707 - Disclosure - Segment Reporting (Tables)
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995717 - Disclosure - Organization and Summary of Significant Accounting Policies (Details)
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995727 - Disclosure - Organization and Summary of Significant Accounting Policies (Details 1)
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995737 - Disclosure - Organization and Summary of Significant Accounting Policies (Details 2)
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995747 - Disclosure - Organization and Summary of Significant Accounting Policies - (Details 3)
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995757 - Disclosure - Organization and Summary of Significant Accounting Policies (Details 4)
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995767 - Disclosure - Collaboration and License Agreements (Details)
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995777 - Disclosure - Collaboration and License Agreements (Details 1)
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995787 - Disclosure - Collaboration and License Agreements (Details 2)
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995797 - Disclosure - California Institute For Regenerative Medicine Award (Details)
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995807 - Disclosure - Investments (Details)
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995817 - Disclosure - Investments (Details 2)
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995827 - Disclosure - Investment (Details 3) - Short Term Investment (Details)
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995837 - Disclosure - Fair Value Measurements (Details)
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995847 - Disclosure - Fair Value Measurements (Details 2)
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995857 - Disclosure - Fair Value Measurements (Details 3)
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995867 - Disclosure - Property and Equipment (Details)
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995877 - Disclosure - Property and Equipment (Additional Information) (Details)
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995887 - Disclosure - Accrued Expenses (Details)
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995897 - Disclosure - Accrued Expenses and Long-Term Debt (2017 Term Loan) (Details 2)
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995907 - Disclosure - Leases (Additional Information) (Details)
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995917 - Disclosure - Leases (Details 1)
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995927 - Disclosure - Leases (Details 2)
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995937 - Disclosure - Leases (Details 2) 2
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995947 - Disclosure - Schedule of sublease income - Leases (Details)
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995957 - Disclosure - Convertible Preferred Stock and Stockholders' Equity (Additional information) (Details)
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995967 - Disclosure - Convertible Preferred Stock and Stockholders' Equity - Stock option activity under all equity and stock option plans (Details)
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995977 - Disclosure - Convertible Preferred Stock and Stockholders' Equity - Restricted stock unit activity under all equity and stock option plans (Details)
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995987 - Disclosure - Convertible Preferred Stock and Stockholders' Equity - Stock based compensation for all stock awards (Details)
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995997 - Disclosure - Convertible Preferred Stock and Stockholders' Equity - Weighted average assumptions used in the Black-Scholes option pricing model (Details)
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996007 - Disclosure - Convertible Preferred Stock and Stockholders' Equity - Schedule of common stock reserved for future issuance (Details )
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996017 - Disclosure - Income Taxes - Schedule of reconciliation of the Company's expected federal income tax provision (benefit) to the actual income tax provision - (Details)
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996027 - Disclosure - Income Taxes - Schedule of reconciliation of the Company's expected federal income tax provision (benefit) to the actual income tax provision - (Details) 2
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996037 - Disclosure - Income Taxes - Schedule of reconciliation of the Company's expected federal income tax provision (benefit) to the actual income tax provision (Parenthetical) (Details)
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996047 - Disclosure - Income Taxes - Income Taxes Paid Or Refunded (Details)
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996057 - Disclosure - Income Taxes (Additional information) (Details)
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996067 - Disclosure - Income Taxes - Summary of the change in the Company's unrecognized tax benefits - (Details )
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996077 - Disclosure - Segment Reporting (Additional Information) (Details)
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996087 - Disclosure - Segment Reporting - Schedule of Segment Profit or Loss, Including Segment Expenses (Details)
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996097 - Disclosure - Employee Benefits (Details)
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996107 - Disclosure - Commitments and Contingencies (Details)
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996117 - Disclosure - Subsequent Events (Details)
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Commercial Option Exercise Member
Commercial option exercise [Member]
Commercial option exercise [Member]
Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from Sale of Property, Plant, and Equipment, Total
Proceeds from sale of property and equipment
Deferred Tax Assets Capitalized RD expense.
Deferred Tax Assets Capitalized RD expense
Capitalized R&D expense
Upfront cash payment
Upfront Cash Payment
Upfront Cash Payment
Segments [Domain]
Scientific Equipment [Member]
Scientific equipment.
Scientific equipment [Member]
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Private placement of pre-funded warrants
Private Placement of Pre Funded Warrants
Private placement of pre Funded warrants
Preferred stock, issued shares
Preferred Stock, Shares Issued
Preferred Stock, Shares Issued, Total
Balance Sheet Location
Statement of Financial Position Location, Balance [Domain]
Total Company's Contributions
Defined Benefit Plan, Plan Assets, Contributions by Employer
Balance at the beginning of the period
Balance at the end of the period
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Issuance of stock to collaboration partner, net of issuance costs
Stock Issued During Period Value To Collaborative Partner
Aggregate value of stock issued to the collaborative partner during the period.
Supplemental schedule of noncash investing and financing activities
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Weighted-average pre-funded warrants
Weighted-average pre-funded warrants
Weighted-average pre-funded warrants
Plan Name
Plan Name [Axis]
Issuance of stock to collaboration partner, net of issuance costs (in shares)
Stock Issued During Period Shares To Collaborative Partner
Number of stock shares issued to the collaborative partner during the period.
Estimated Fair Value, 12 Months or Greater
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Entity Current Reporting Status
Entity Current Reporting Status
Operating expenses:
Operating Expenses [Abstract]
Less:
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Weighted-Average Price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
California Institute for Regenerative Medicine
California Institute For Regenerative Medicine [Member]
California institute for regenerative medicine .
Common stock, authorized shares
Common Stock, Shares Authorized
Investments
Investment, Policy [Policy Text Block]
Income Tax Uncertainties [Abstract]
Product and Service
Product and Service [Axis]
Fair Value by Liability Class
Fair Value by Liability Class [Domain]
Document Fiscal Period Focus
Document Fiscal Period Focus
Expected to vest at the end of the period
Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Expected To Vest Weighted Average Remaining Contractual Term
Share-based Compensation arrangement by share-based payment award equity instruments other than options expected to vest weighted remaining contractual term.
Aggregate research and development fees payments receivable
Collaborative Arrangement Aggregate Payments Receivable
Collaborative arrangement aggregate payments receivable.
Entity Shell Company
Entity Shell Company
Accrued other
Other Accrued Liabilities, Current
Short-term Investments [Member]
Short-Term Investments [Member]
Cash and cash equivalents
Cash and Cash Equivalent
Cash and Cash Equivalents, at Carrying Value, Total
Cash and Cash Equivalents, at Carrying Value, Beginning Balance
Cash and Cash Equivalents, at Carrying Value, Ending Balance
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Denominator:
Option exercise payment.
Option Exercise Payment
Option exercise payment
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Common Stock, Shares, Issued
Common Stock, Shares, Issued, Total
Common stock, issued shares
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Cybersecurity Risk Board of Directors Oversight [Text Block]
Asset Class
Asset Class [Domain]
Statement [Table]
Statement [Table]
Right-of-use assets and lease liabilities, net
Increase Decrease In Right Of Use Assets And Lease Liabilities Net
Increase decrease in right-of-use assets and lease liabilities, net.
Schedule of Income taxes paid or refunded
Income Taxes Paid Or Refunded [Table Text Block]
Income Taxes Paid Or Refunded [Table Text Block]
Expected volatility
Fair Value Assumptions Expected Volatility Rate1
Fair Value Assumptions Expected Volatility Rate 1.
Restricted cash
Restricted Cash, Noncurrent
Increase related to current year tax positions
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Right-of-use assets obtained in exchange for lease obligations
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Accured Interest on investments
Interest Receivable
Weighted-average grant date fair value per share of employee options granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Period of change in ownership
Period For Cumulative Change In Ownership
Period for cumulative change in ownership.
Statement [Line Items]
Statement [Line Items]
Associated with collaboration services
Associated with Collaboration Services [Member]
Associated with Collaboration Services [Member]
Entity Filer Category
Entity Filer Category
Number of Restricted Stock Units
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Total liabilities and stockholders’ equity
Liabilities and Equity
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Candidate 2
Candidate Two [Member]
Candidate two.
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Options Exercisable at the end of the period
Long-Lived Tangible Asset
Long-Lived Tangible Asset [Axis]
Severance Costs
Severance and other employee termination-related costs
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Minimum annual payments to maintain licenses
Minimum Annual Payments To Maintain Licenses
Minimum annual payments to maintain licenses.
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Ono Letter Agreement
Ono Letter Agreement [Member]
Ono Letter Agreement.
Money market fund
Cash and Cash Equivalents, Fair Value Disclosure
Effects of Changes in Tax Laws or Rates Enacted in the Current Period Amount
Effects of Changes in Tax Laws or Rates Enacted in the Current Period Amount
Effects of changes in tax laws or rates enacted in the current period amount
Valuation allowance
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Deferred Tax Assets, Valuation Allowance, Total
Income tax (benefit) at statutory rate
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Share issue price (in dollars per share)
Shares Issued, Price Per Share
Subsequent Event [Line Items]
Corporate Restructuring, Policy [Policy Text Block]
Corporate Restructuring, Policy [Policy Text Block]
Corporate Restructuring
Cybersecurity Risk Management Third Party Engaged [Flag]
Documents Incorporated by Reference [Text Block]
Documents Incorporated by Reference
Income tax expense
Effective Income Tax Rate Reconciliation, Percent
Collaboration And License Agreements Disclosure [Abstract]
No definition available.
Common stock options
Short-term leases term excluded from calculation of ROU and lease liabilities
Short Term Leases Term Excluded From Calculation Of Right Of Use Of Assets And Lease Liabilities
Short-term leases term excluded from calculation of right of use of assets and lease liabilities.
Interest income
Investment Income, Interest
Income Tax Authority
Income Tax Jurisdiction [Axis]
Stock Price Appreciation Milestones Liabilities Non Current
Stock price appreciation milestones, non current portion.
Stock price appreciation milestones
Cash, Cash Equivalents and Restricted Cash
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Impairment of Right of Use Asset
Impairment of Right of Use Asset
Impairment of Right of Use Asset
Transaction Price Of Agreement
Transaction price of the agreement
Transaction price of agreement.
Property and equipment
Property, Plant and Equipment [Line Items]
Represents the amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to permanent differences.
Income Tax Reconciliation Permanent Tax Differences
Permanent differences
Monthly vesting period
Share Based Compensation Arrangement By Share Based Payment Award Monthly Award Vesting Period
Represents the monthly vesting period of share-based compensation awards.
FairValueAssetsLevel1ToLevel2TransfersAmounts
FairValueAssetsLevel1ToLevel2TransfersAmounts
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Cybersecurity Risk Management, Strategy, and Governance [Table]
Schedule of Basic and Diluted Net Loss per Share Attributable to Stockholders
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Non Rule 10b51 Arr Modified Flag
Non Rule 10b51 Arr Modified Flag
Non-Rule 10b5-1 Arrangement Modified
Outstanding options to purchase common stock
Stock Compensation Plan
Share-Based Payment Arrangement [Member]
Earnings Per Share, Basic, Total
Earnings Per Share, Basic
Net loss per share, Basic
Employee Benefits
Retirement Benefits [Text Block]
Amended MSK License
Amended M S K License [Member]
Amended MSK license member.
Balance at the beginning of the period
Balance at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Going Concern Assessment
Liquidity Policy [Text Block]
Liquidity.
Impairment charge on right-of-use asset
Impairment of Leasehold
Total current liabilities
Liabilities, Current
Current Liability
Accounts receivable
Increase (Decrease) in Accounts Receivable
Adjustments to reconcile net loss to net cash used in operating activities
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Year Five
2030
Summary of Changes in the Fair Value of the Company’s Level 3 Enterprise Fair Value Milestone Payment Liability
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Income Tax Paid, Federal, after Refund Received
Income Tax Paid, Federal, after Refund Received, Total
Federal
U.S. Federal
Domestic Tax Jurisdiction [Member]
Depreciation
Deferred Tax Liabilities Depreciation
Deferred tax liabilities depreciation.
Effective Income Tax Rate Reconciliation [Table]
Increase related to prior year tax positions
Increase related to prior year tax positions
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Performance Based Restricted Stock Units (PRSUs) [Member]
Performance Based Restricted Stock Units (PRSUs) [Member]
Performance Based Restricted Stock Units PRSU
Stockholders’ equity:
Equity, Attributable to Parent [Abstract]
Entity Small Business
Entity Small Business
Conversion of preferred shares to common stock
Conversion Of Preference Share To Common Stock
Value of preferred share conversion to common stock.
Percentage of discretionary contributions description
Percentage of discretionary contributions description
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit), Total
Retained Earnings (Accumulated Deficit), Beginning Balance
Retained Earnings (Accumulated Deficit), Ending Balance
Stock compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost
Sublicense Consideration Represents an Asset Under ASC, Other Assets and Deferred Costs
Sublicense Consideration Represents an Asset Under ASC, Other Assets and Deferred Costs
Sublicense consideration represents an asset under ASC, other assets and deferred costs
Final payment fee
Final Payment Fee On Debt Facility Amount
Final payment fee on debt facility amount.
Preferred Stock [Member]
Preferred Stock
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Cancelled
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
Proceeds from public offering of common stock, net of issuance costs
Proceeds from Issuance Initial Public Offering
Common stock per share
Sale of Stock, Price Per Share
Milestone payment under Deferred revenue
Milestone Payment Under Deferred Revenue
Milestone Payment Under Deferred Revenue
Total intrinsic value of stock options exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Current Assets [Member]
Other Current Assets [Member]
Organization and summary of significant accounting policies
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Janssen Biotech Inc
Janssen Biotech Inc [Member]
Janssen Biotech Inc.
Leases [Abstract]
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total
Weighted-average common shares outstanding
Lessee Lease Description [Line Items]
Lessee, Lease, Description [Line Items]
Amendment Flag
Amendment Flag
Issuance of common stock upon cashless warrant exercise (in shares)
Stock Issued During Period Shares Warrants Exercised
Stock issued during period, shares, warrants exercised.
Product and Service
Product and Service [Domain]
Income tax (benefit) at statutory rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Maturities of investments
Proceeds from Sale, Maturity and Collection of Investments
Proceeds from Sale, Maturity and Collection of Investments, Total
Number of shares to be purchased
Class of Warrant or Right, Number of Securities Called by Warrants or Rights
Net Loss Per Common Share
Earnings Per Share, Policy [Policy Text Block]
Liabilities and Stockholders’ Equity
Liabilities and Equity [Abstract]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Net cash used in operating activities
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Common Stock [Member]
Common Stock
Financing Receivable, Nonaccrual, No Allowance
Available-for-sale securities, recognition of expected credit losses
Cybersecurity Risk Role of Management [Text Block]
Tax credit carryforwards
Tax Credit Carryforward, Amount
Granted
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Personnel Costs
Personnel Costs
Personnel costs
Lessee, Operating Lease, Liability, to be Paid, Year Three
2028
Less accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Less accumulated depreciation and amortization
Maturity (in years)
Investment Maturity Date Range
Investment maturity date range.
Schedule Of Available For Sale Securities [Line Items]
Debt Securities, Available-for-Sale [Line Items]
Entity Address, Address Line One
Entity Address, Address Line One
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Deferred Tax Liabilities, Gross, Total
Schedule of weighted-average assumptions used to determine the fair value of employee and nonemployee stock option grants
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Axis]
Earnings Per Share [Abstract]
Net loss per share, basic and diluted
Income Taxes
Income Tax, Policy [Policy Text Block]
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Effects of Changes in Tax Laws or Rates Enacted in the Current Period Percentage
Effects of Changes in Tax Laws or Rates Enacted in the Current Period Percentage
Effects of changes in tax laws or rates enacted in the current period
Proceeds From FT Eight One Nine CIRM Award
Proceeds From FT EightOne Nine CIRM Award
Proceeds from FT819 CIRM award
Short term investments, maturity start range
Short Term Investment Maturity Period Range Start
Short-term investment maturity period range start.
November 2016 Placement
November2016 Placement [Member]
November 2016 placement.
Balance Sheet Location
Statement of Financial Position Location, Balance [Axis]
Investment Type
Investment Type [Axis]
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Impairment of Right of Use Asset
Estimated Fair Value, Total
Estimated Fair Value, Total
Debt Securities, Available-for-Sale, Unrealized Loss Position
Total deferred tax assets
Deferred Tax Assets, Gross
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax, Total
Unrealized gain (loss) on available-for-sale securities, net
Class of Warrant or Right
Class of Warrant or Right [Axis]
Document Type
Document Type
Total income taxes paid (refunded)
Income Taxes Paid, Net
Income Taxes Paid, Net, Total
Collaborative Arrangement and Arrangement Other than Collaborative
Collaborative Arrangement and Arrangement Other than Collaborative [Axis]
Other employee termination-related costs
Other Employee Termination Related Cost
Other Employee Termination Related Cost
Short-Term Investments [Abstract]
Collaborative Arrangement and Arrangement Other than Collaborative
Collaborative Arrangement and Arrangement Other than Collaborative [Domain]
Entity Central Index Key
Entity Central Index Key
Summary of Investments
Debt Securities, Available-for-Sale [Table Text Block]
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Net change in cash, cash equivalents and restricted cash
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Ten-trading day trailing average common stock price
Trailing Stock Price Per Share
Trailing stock price per share.
Subsequent Event Type
Subsequent Event Type [Domain]
Available-for-sale securities, recognition of expected credit losses
Other-than-Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance
Anti-dilutive securities (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Stock Option And Incentive Plan 2013
Stock Option And Incentive Plan2013 [Member]
Represents information pertaining to 2013 Stock Option and Incentive Plan.
Proceeds from Issuance of Warrants
Proceeds from issuance of pre-funded warrants, net of issuance costs
Outstanding at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Amortized Cost
Debt Securities, Available-for-Sale, Amortized Cost
Amortized Cost
Estimated Fair Value
Estimated Fair Value
Debt Securities, Available-for-Sale
Estimated Fair Value
Contra research and development expenses
Contra Research and Development Expenses
Contra research and development expenses
Document Financial Statement Error Correction Flag
Document Financial Statement Error Correction [Flag]
Milestone Three
Milestone Three [Member]
Milestone Three Member.
Exercised
Exercise of stock options, net of issuance costs (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Total current accrued expenses
Accrued expenses
Accrued Liabilities, Current
Stock awarded grant value
Issuance of common stock upon vesting of restricted stock units
Stock Issued During Period, Value, Restricted Stock Award, Gross
Nondeductible executive compensation
Income Tax Reconciliation Nondeductible Compensation
Income tax reconciliation nondeductible compensation.
Current Fiscal Year End Date
Current Fiscal Year End Date
Debt Instrument [Table]
Schedule of Long-Term Debt Instruments [Table]
Janssen Agreement
Janssen Agreement [Member]
Janssen agreement.
Restricted cash
Restricted Cash and Cash Equivalent, Noncurrent
Restricted Cash and Cash Equivalents, Noncurrent, Total
CALIFORNIA
California
Entity Address, State or Province
Entity Address, State or Province
Balance at the beginning of the period
Balance at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Preferred stock, outstanding shares
Preferred Stock, Shares Outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding, Ending Balance
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Unrealized Gains
Shares reserved for issuance
Common Stock, Capital Shares Reserved for Future Issuance
FairValueLiabilitiesLevel1ToLevel2TransfersAmounts
FairValueLiabilitiesLevel1ToLevel2TransfersAmounts
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount
Class of Warrant or Right
Class of Warrant or Right [Domain]
Clinical Programs, Expense
Clinical Programs, Expense
Clinical programs
Amortization of sublicense consideration
Amortization Of Sub License Consideration
Amortization of sub license consideration.
State and local tax, net of federal income tax effect
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Schedule of allocation of stock-based compensation for all stock awards
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
Collaborative arrangement annual payments receivable recorded as deferred revenue
Collaborative Arrangement Annual Payments Receivable Recorded Under Deferred Revenue
Collaborative arrangement annual payments receivable recorded under deferred revenue.
Exercise of stock options, net of issuance costs
Stock Issued During Period, Value, Stock Options Exercised
Comprehensive Loss
Comprehensive Income, Policy [Policy Text Block]
Summary of significant components of the Company's deferred tax assets
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Repayments of debt amount
Repayments Of Debt Including Principal And Final Fee
Repayments of debt including principal and final fee.
Collaboration and License Agreements
Collaborative Arrangement Disclosure [Text Block]
Subsequent Event
Subsequent Event [Member]
Tax credit carryforward expiration year
Tax Credit Carryforward Beginning Expiration Year
Tax credit carryforward beginning expiration year.
Property, Plant and Equipment [Abstract]
R&D tax credits
Deferred Tax Assets, Tax Credit Carryforwards, Research
Other assets
Other Assets, Noncurrent
Other Assets, Noncurrent, Total
Antidilutive Securities
Antidilutive Securities [Axis]
Type of Revenue [Extensible List]
Revenue, Product and Service [Extensible Enumeration]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Stock options generally vested on anniversary grant date (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage
Common stock multiple
Common Stock Multiple1
Common Stock Multiple
Aggregate interest expense
Interest Expense, Debt
Interest Expense, Debt, Total
California
State and Local Jurisdiction [Member]
Related Party Transaction
Related Party Transaction [Axis]
First Janssen Cancer Target
First Janssen Cancer Target [Member]
first Janssen Cancer Target
Accumulated Other Comprehensive Gain (Loss)
AOCI Attributable to Parent [Member]
Finite-Lived Intangible Assets, Major Class Name
Finite-Lived Intangible Assets, Major Class Name [Domain]
Weighted-average assumptions to determine fair value of stock options
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Cash and Cash Equivalents
Cash and Cash Equivalents [Domain]
Stock Price Appreciation Milestones
Stock Price Appreciation Milestones Policy [Text Block]
Stock price appreciation milestones.
Lessee, operating lease, option to extend
Lessee, Operating Lease, Option to Extend
Preferred Stock, Value, Issued
Preferred Stock, Value, Issued, Total
Preferred Stock, Value, Issued, Beginning Balance
Preferred Stock, Value, Issued, Ending Balance
Preferred stock, $0.001 par value; authorized shares - 5,000,000; Class A Convertible Preferred shares issued and outstanding - 2,755,086 at December 31, 2025 and December 31, 2024
Minimum
Minimum [Member]
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Stock Option And Incentive Plan2022 [Member]
Stock Option And Incentive Plan2022 [Member]
Awards available under the 2022 Plan
Financial Instrument
Financial Instrument [Axis]
Current assets:
Assets, Current [Abstract]
FT Eight One Nine [Member]
FT Eight One Nine [Member]
FT819
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements Nonrecurring
Fair Value, Nonrecurring [Member]
Liabilities, Fair Value Disclosure [Abstract]
Financial liabilities:
Segment Reporting [Abstract]
Schedule of Assets Measured at Fair Value on Recurring Basis
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
Current liabilities:
Liabilities, Current [Abstract]
Terms of conversion
Preferred Stock, Convertible, Terms
Accrued clinical trial related costs
Accrued Clinical Trial Related Costs Current
Accrued clinical trial related costs current.
Balance (in shares)
Balance (in shares)
Shares, Outstanding
Sublease income
Sublease Income
Net operating loss carryforwards
Operating Loss Carryforwards
Operating Loss Carryforwards, Total
Accounts receivable
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Other Income
Other Income
Renewal term
Lessee, Operating Lease, Renewal Term
Income Tax Paid, by Individual Jurisdiction [Abstract]
Commitments and contingencies
Commitments and Contingencies
Leases
Lessee, Leases [Policy Text Block]
Balance at the beginning of the period
Balance at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Terms of exercise
Warrants Exercise Terms Description
Warrants exercise terms description.
General And Administrative
General and Administrative Expense [Member]
General and Administrative Expenses
Total lease liability
Operating Lease, Liability
Operating Lease, Liability, Total
Auditor Firm ID
Employee And Non Employee Stock Option [Member]
Represents an arrangement whereby both an employee and a non-employee is entitled to receive in the future, subject to vesting and other restrictions, certain number of shares in the entity at a specified price, as defined in the agreement.
Employee and Non Employee Stock Option
Aggregate Intrinsic Value
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value [Abstract]
Determine the estimated fair value of the enterprise value milestone payments
Fair Value Measurement Inputs and Valuation Techniques [Abstract]
Income tax reconciliation reserve for uncertain tax positions.
Income Tax Reconciliation Reserve For Uncertain Tax Positions
Reserve for uncertain tax positions
Purchase price of prefunded warrants
Purchase Price Of Prefunded Warrants
Purchase price of prefunded warrants.
Lessee Lease Description [Table]
Lessee, Lease, Description [Table]
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Changes in valuation allowance
Outstanding at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms
Johnson Johnson Innovation J J D C Inc
Johnson Johnson Innovation J J D C Inc [Member]
Johnson & Johnson Innovation-JJDC, Inc.
Research services
Research Services [Member]
Research services.
Purchases of property and equipment in accounts payable
Capital Expenditures Incurred but Not yet Paid
Net loss
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total
Non-refundable upfront payments recorded as deferred revenue
Upfront Non Refundable Non Creditable Payment Receivable
Upfront non-refundable non-creditable payment receivable.
C I R M Award Liability Noncurrent
CIRM award liability, noncurrent.
CIRM award liability, net of current portion
Estimated term (in years)
Fair Value Assumptions Expected Term1
Fair Value Assumptions Expected Term 1.
Long-term Debt, Type
Long-Term Debt, Type [Domain]
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Weighted-average common shares used to compute basic net loss per share
Weighted Average Number of Shares Outstanding, Basic, Total
Weighted Average Number of Shares Outstanding, Basic
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Options Exercisable at the end of the period
Segment Reporting, Expense Information Used by CODM, Description
Segment Reporting Expense Information
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount
Other
Schedule of reconciliation of the Company's expected federal income tax provision (benefit) to the actual income tax provision
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Weighted Average Remaining Vesting Period
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Unrealized Losses, 12 Months or Greater
Unrealized Losses, 12 Months or Greater
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Segments [Axis]
Long-Lived Tangible Asset
Long-Lived Tangible Asset [Domain]
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Proceeds from private placement of common stock, net of issuance costs
Proceeds from Issuance of Private Placement
Subsequent Events
Subsequent Events [Text Block]
Income tax examination, year under examination
Income Tax Examination, Year under Examination
Stock–based compensation
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total
Changes in valuation allowance
Changes in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Total stockholders’ equity
Balance
Balance
Equity, Attributable to Parent
Purchases of investments
Payments to Acquire Investments
Payments to Acquire Investments, Total
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Lessee, operating lease, existence of option to extend
Lessee, Operating Lease, Existence of Option to Extend [true false]
Statement of Stockholders' Equity [Abstract]
Municipal securities
Municipal Notes [Member]
Convertible Preferred Stock (if converted)
Series A Convertible Preferred Stock (if converted)
Series A Preferred Stock [Member]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
Equity method investment, underlying equity in net assets
Equity Method Investment, Underlying Equity in Net Assets
Collaborative Arrangement
Collaborative Arrangement [Member]
Stock Purchase Agreement
Stock Purchase Agreement [Member]
Stock purchase agreement [Member].
Leasehold Improvements [Member]
Leasehold improvements-building [Member]
Entity Address, Address Line Two
Entity Address, Address Line Two
Fair Value Measurements
Fair Value Disclosures [Text Block]
Income Tax Reconciliation Nondeductible Compensation Percent
Income Tax Reconciliation Nondeductible Compensation Percent
Nondeductible executive compensation
Number of Options
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Schedule of accrued expenses
Schedule of Accrued Liabilities [Table Text Block]
Summary of the change in the Company's unrecognized tax benefits
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Plan Name
Plan Name [Domain]
Annually vesting period
Share Based Compensation Arrangement By Share Based Payment Award Annually Award Vesting Period
Share based compensation arrangement by share based payment award annually award vesting period.
Software and Software Development Costs [Member]
Software [Member]
Milestone Two
Milestone Two [Member]
Milestone Two 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]
Entity [Domain]
Entity
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Maximum percentage of common stock ownership together with affiliates allowable after exercise of prefunded warrants
Maximum Percentage Of Common Stock Ownership Together With Affiliates Allowable After Exercise Of Prefunded Warrants
Maximum percentage of common stock ownership together with affiliates allowable after exercise of prefunded warrants.
Impairment, Long-Lived Asset, Held-for-Use
Impairment, Long-Lived Asset, Held-for-Use, Total
Impairment of long-lived assets
Impairment loss
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price
Options Vested and expected to vest at the end of the period
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
Non-current Assets [Member]
Other Noncurrent Assets [Member]
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Other
Proceeds from CIRM award.
Proceeds From C I R M Award
Proceeds from FT819 CIRM award
Property and Equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Milestone payments
Stock price appreciation milestone payment
Milestone Payments
Milestone payments during the period.
Entity Address, City or Town
Entity Address, City or Town
Convertible Preferred Stock And Stockholders Deficit Disclosure [Abstract]
Convertible preferred stock and stockholders' equity.
Security Exchange Name
Security Exchange Name
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Other
Property, Plant and Equipment, Gross
Property and equipment, gross
Property, Plant and Equipment, Gross, Total
Property, Plant and Equipment, Gross, Beginning Balance
Property, Plant and Equipment, Gross, Ending Balance
Ono Pharmaceutical Company Ltd
Ono Pharmaceutical Company Ltd [Member]
Ono Pharmaceutical Company Ltd.
Counterparty Name
Counterparty Name [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Performance-based restricted granted, none of vested Units Outstanding
Amended MSK License
Amended And Restated Exclusive License Agreement [Member]
Amended and Restated Exclusive License Agreement.
Antidilutive Securities, Name
Antidilutive Securities, Name [Domain]
Intangible asset amortization
Deferred Tax Assets, Goodwill and Intangible Assets
Statistical Measurement
Statistical Measurement [Domain]
Exercise price of warrants
Class of Warrant or Right, Exercise Price of Warrants or Rights
Total current assets
Assets, Current
Total stock-based compensation expense
Share-Based Payment Arrangement, Expense
Stock-based compensation
Document Period End Date
Document Period End Date
Variable Interest Entity, Measure of Activity [Abstract]
Title of Individual
Title and Position [Axis]
Fair Value Hierarchy and NAV
Fair Value Hierarchy and NAV [Domain]
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Options Exercisable at the end of the period
Loss on disposal of property and equipment
Gain (Loss) on Disposition of Property Plant Equipment
Gain (Loss) on Disposition of Property Plant Equipment, Total
Loss on disposal of property and equipment
Net Rentable Area
Net Rentable Area
Non-refundable upfront payments recorded as deferred revenue
Collaborative Arrangements Upfront Payments Recorded Under Deferred Revenue
Represents the amount of upfront payments received under collaborative arrangements is recorded as deferred revenue.
Accrued payroll and other employee benefits
Accrued Salaries, Current
CIRM award liability current.
C I R M Award Liability Current
CIRM award liability, current portion
Statement of Financial Position [Abstract]
Outstanding restricted stock awards
Restricted Stock Units (RSUs) [Member]
Effective Income Tax Rate Reconciliation Changes In Uncertain Tax Positions Percent
Effective Income Tax Rate Reconciliation Changes In Uncertain Tax Positions Percent
Changes in unrecognized tax benefits
Additional Cancer Targets
Additional Cancer Targets [Member]
Additional Cancer Targets.
Revenue Recognition
Revenue [Policy Text Block]
Conversion price
Preferred Stock Conversion Price
Preferred stock conversion price.
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]
Antidilutive Security, Excluded EPS Calculation [Table]
Class of Stock
Class of Stock [Axis]
Net of deferred tax assets and liabilities
Deferred Tax Liabilities, Net
Net of deferred tax assets and liabilities
Current federal or state tax expense
Current Income Tax Expense (Benefit)
Current Income Tax Expense (Benefit), Total
Available-for-sale securities, realized gains (losses) on sales
Debt Securities, Available-for-Sale, Realized Gain (Loss)
Debt Securities, Available-for-sale, Realized Gain (Loss), Total
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Tenant improvements
Tenant Improvements
Financial Instruments
Financial Instruments [Domain]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Aggregate Intrinsic Value
Share-based Compensation arrangement by share-based payment award equity instruments other than options expected to vest aggregate intrinsic value.
Restricted stock units expected to vest at December 31, 2025
Ft Eight Thirty Six [Member]
Ft Eight Thirty Six [Member]
FT836
Available-for-sale securities, impairment
Other-than-temporary Impairment Loss, Debt Securities, Available-for-Sale
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Total
Lessee, Operating Lease, Liability, to be Paid, Year Two
2027
Maximum percentage of common stock ownership after change upon notice.
Maximum Percentage Of Common Stock Ownership After Change Upon Notice
Maximum percentage of common stock ownership after change upon notice.
Redmile Group, LLC and Affiliates
Redmile Group Limited Liability Company And Affiliates [Member]
Redmile Group, LLC and Affiliates.
Prepaid Expenses And Other Assets
Prepaid Expenses And Other Assets [Member]
Prepaid expenses and other assets.
Unrealized Losses, Less Than 12 Months
Unrealized Losses, Less Than 12 Months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Weighted-average common shares used to compute diluted net loss per share
Weighted Average Number of Shares Outstanding, Diluted, Total
Weighted Average Number of Shares Outstanding, Diluted
Securities Act File Number
Entity File Number
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Unrealized loss on investments, net
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent
Other
California Institute for Regenerative Medicine Award
Award Agreement For Research And Development Disclosure [Text Block]
Award agreement for research and development disclosure.
Pre-Funded Warrants
Pre Funded Warrants [Member]
Pre-Funded Warrants.
Cover [Abstract]
Accounts payable and accrued expenses
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Cancelled
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Stock price appreciation milestones
Stock Price Appreciation Milestones [Member]
Stock price appreciation milestone.
Investments
Investments [Domain]
Treasuries, Commercial paper. Non US government securities and Corporate Debt Securities
U.S. Treasury debt securities
US Treasury Securities [Member]
Number of operating segments
Number of Operating Segments
Sale of Stock
Sale of Stock [Domain]
Segment Reporting
Segment Reporting Disclosure [Text Block]
General and administrative
General and Administrative Expense
General and Administrative Expense, Total
Upfront Fee
Upfront Fee [Member]
Upfront fee.
Percentage of reduction on milestone payments
Collaborative Arrangement Percentage Of Reduction On Milestone Payments
Collaborative arrangement percentage of reduction on milestone payments.
Subsequent Event [Table]
Other
Deferred Tax Assets, Other
Restructuring Charges
Restructuring Charges, Total
Restructuring Charges
Weighted Average Remaining Contractual Term
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Estimated useful lives
Property, Plant and Equipment, Useful Life
New Accounting Pronouncements, Policy [Policy Text Block]
Recently Issued Accounting Pronouncements
Schedule of Future Minimum Payments Under Non-cancelable Operating Leases
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Funding Support the Conduct of Pre_ Clinical and Investigational New Drug (IND)
Funding Support the Conduct of Pre_ Clinical and Investigational New Drug
Funding Support the Conduct of Pre_ Clinical and Investigational New Drug
Deferred revenue
Contract with Customer, Liability, Current
Conversion of preferred shares to common stock
Stock Issued During Period, Shares, Conversion of Convertible Securities
General vesting period after first year
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Reconciliation of the Company's expected federal income tax provision (benefit) to the actual income tax provision
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Unrecognized compensation cost related to unvested restricted shares
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount
FairValueAssetsLevel2ToLevel1TransfersAmounts
FairValueAssetsLevel2ToLevel1TransfersAmounts
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount
Aggregated by investment category and the length of time
Investment Holdings, Schedule of Investments [Table Text Block]
Lease term
Lessee, Operating Lease, Term of Contract
Research Activities, Expense
Research Activities, Expense
Research activities
Organization and Summary of Significant Accounting Policies
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Long-term investments
Long-Term Investments
Long-term Investments, Total
Common stock, outstanding shares
Common Stock, Shares, Outstanding
Common Stock, Shares, Outstanding, Beginning Balance
Common Stock, Shares, Outstanding, Ending Balance
Operating lease liabilities, current portion
Operating Lease, Liability, Current
Collaboration agreement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Depreciation and amortization
Depreciation expense
Depreciation, Depletion and Amortization
Depreciation, Depletion and Amortization, Total
Schedule Of Milestone Payments Valuation Assumptions Table [Text Block]
Schedule of milestone payments valuation assumptions table text block.
Schedule of Determine the Estimated Fair Value of the Stock Price Appreciation Milestones Payments
Cybersecurity Risk Management Processes Integrated [Flag]
Document Transition Report
Document Transition Report
Net deferred tax assets
Deferred Tax Assets, Net
Short-Term Investments
Short-term investments
Short-Term Investments, Total
Total operating expenses
Operating Expenses
Gladstone License Agreement
Gladstone License Agreement [Member]
Gladstone license agreement.
Current accrued expenses
Accrued Liabilities, Current [Abstract]
Research and development
Research and Development Expense
Research and Development Expense, Total
Award From Regenerative Medicine Institute [Table]
Award From Regenerative Medicine Institute [Table]
Award from regenerative medicine institute.
Impairment charge on property and equipment
Asset Impairment Charges
Asset Impairment Charges, Total
Leases
Lessee, Operating Leases [Text Block]
Class A Convertible Preferred Shares
Convertible Preferred Stock
Convertible Preferred Stock [Member]
Net operating loss carryforward expiration year
Operating Loss Carryforwards Expiration Year
Operating loss carryforwards expiration year.
Comprehensive loss
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Statement of Cash Flows [Abstract]
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 [Abstract]
Aggregate purchase price of common stock
Public offering of common stock, net of offering costs
Stock Issued During Period, Value, New Issues
Financial assets:
Assets, Fair Value Disclosure [Abstract]
Stock Compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent
Convertible Preferred Stock and Stockholders’ Equity
Equity [Text Block]
Convertible preferred stock
Temporary Equity [Line Items]
Profits and losses sharing percentage
Profit Loss Sharing Percentage
Profit loss sharing percentage.
Non-U.S. government securities
Debt Security, Government, Non-US [Member]
Summary of restricted stock unit activity and related information under all equity plans
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Computer Equipment
Computer Equipment [Member]
Cybersecurity Risk Management Processes Integrated [Text Block]
Net loss
Outstanding at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Issuance of common stock upon cashless warrant exercise
Stock Issued During Period Value Warrants Exercised
Stock issued during period, value, warrants exercised.
StockPriceAppreciationMilestoneIncome
StockPriceAppreciationMilestoneIncome
Stock price appreciation milestone, income
Other Nonoperating Income
Other income
Total operating lease expense
Operating Lease, Cost
Expected dividend yield
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value
Options Vested and expected to vest at the end of the period
Assets
Assets [Abstract]
Risk–free interest rate
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Construction-in-Process
Construction in Progress [Member]
Prepaid expenses and other assets
Increase (Decrease) in Prepaid Expense and Other Assets
Increase (Decrease) in Prepaid Expense and Other Assets, Total
Public offering of common stock and issuance of pre-funded warrants, net of offering costs (in shares)
Common Stock Of Public Offering And Issuance Of Pre Funded Warrants
Common stock of public offering and issuance of pre funded warrants.
Document Fiscal Year Focus
Document Fiscal Year Focus
Stock price appreciation milestone payable
Stock Price Appreciation Milestone Payable
Stock price appreciation milestone payable.
Facilities costs
Facilities Costs
Facilities Costs
Investing activities
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Milestone One
Milestone One [Member]
Milestone one member.
Retirement Benefits [Abstract]
Accounts payable
Accounts Payable, Current
Accounts Payable, Current, Total
Research And Development
Research and Development Expense [Member]
Research and Development Expense
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Deferred Federal Income Tax Expense (Benefit)
Federal income tax expense
Deferred revenue
Deferred Revenue
Deferred Revenue, Total
Research and development
Research Tax Credit Carryforward [Member]
Deferred tax assets:
Components of Deferred Tax Assets [Abstract]
Fair Value of Financial Instruments
Fair Value Measurement, Policy [Policy Text Block]
Enterprise Value Milestones Liability At Fair Value.
Enterprise Value Milestones Liability At Fair Value
Enterprise value milestones liability at fair value
Change in the Company's unrecognized tax benefits
Unrecognized Tax Benefits [Roll Forward]
Issuance of common stock from equity incentive plans, net of issuance costs
Proceeds from Stock Options Exercised
Fair Value Disclosures [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Lease liability
Deferred Tax Assets Lease Liabilities
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from lease liabilities.
Lessee, Operating Lease, Liability, to be Paid, Year One
2026
Effective Income Tax Rate Reconciliation [Line Items]
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Thereafter
Total assets measured at fair value on a recurring basis
Assets, Fair Value Disclosure
Total assets measured at fair value on a recurring basis
Sale of Stock
Sale of Stock [Axis]
Stock Purchase Agreement
Stock Purchase Agreement [Axis]
Stock purchase agreement axis.
Award From Regenerative Medicine Institute [Abstract]
Award from regenerative medicine institute.
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net cash provided by investing activities
Private Placement
Private Placement [Member]
Title of 12(b) Security
Title of 12(b) Security
Schedule of Segment Reporting Information, by Segment [Table]
Stock compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount
Cancelled
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Cancelled
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Money market fund
Money Market Funds [Member]
Income Taxes
Income Tax Disclosure [Text Block]
Schedule Of Collaborative Arrangements And Noncollaborative Arrangement Transactions [Table]
Collaborative Arrangement and Arrangement Other than Collaborative [Table]
Legal Entity [Axis]
Legal Entity
Changes in assets and liabilities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Schedule of property and equipment
Property, Plant and Equipment [Table Text Block]
Letters of credit outstanding amount
Letters of credit outstanding amount
Letters of Credit Outstanding, Amount
Balance at the beginning of the period
Balance at the end of the period
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Income Taxes
Income Tax Disclosure [Abstract]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Table]
Fair Value, Recurring and Nonrecurring [Table]
Equity premium per share
Equity Premium On Share Price Per Share Under Agreement
Equity premium on share price per share under agreement.
Beginning unrecognized tax benefits
Ending unrecognized tax benefits
Unrecognized Tax Benefits
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Company Received Payment
Company Received Payment
Company Received Payment
Issuance of common stock for license agreements
Issuance of common stock for license agreements
Stock Issued During Period, Value, Issued for Services
Measurement Frequency
Measurement Frequency [Domain]
Income Statement Location
Statement of Income Location, Balance [Axis]
Trading Symbol
Trading Symbol
Property and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Other Segment Expenses
Other Segment Expenses
Other segment expenses
Public offering of common stock and issuance of pre-funded warrants, net of offering costs
Public Offering Of Common Stock And Issuance Of Pre Funded Warrants
Public offering of common stock and issuance of pre-funded warrants.
Subsequent Event Type
Subsequent Event Type [Axis]
Financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Expected term (in years)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Fair Value Measurements Recurring
Fair Value, Recurring [Member]
Accounts Payable and Accrued Liabilities Disclosure [Text Block]
Accrued Expenses
Total undiscounted lease payments
Future minimum payments under the operating leases
Lessee, Operating Lease, Liability, to be Paid
Less: imputed interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Candidate one.
Candidate One [Member]
Candidate 1
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent
R&D tax credits
Stock price appreciation milestones
Stock Price Appreciation Milestones
Stock price appreciation milestones.
Aggregate equity premium on shares
Aggregate Equity Premium On Shares Issued Under Agreement
Aggregate equity premium on shares issued under agreement.
Expected to vest at the end of the period
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Number
Share-based Compensation arrangement by share-based payment award equity instruments other than options expected to vest number.
Equity Components
Equity Components [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term
Options Vested and expected to vest at the end of the period
Cumulative changes in ownership percentage
Cumulative Change In Ownership Percentage
Cumulative change in ownership percentage.
Equity Component
Equity Component [Domain]
Asset Class
Asset Class [Axis]
Percentage of Tax Credit
Percentage of Tax Credit
Percentage Of Tax Credit
Deferred revenue
Deferred Tax Assets, Deferred Income
Document Annual Report
Document Annual Report
Sublicense Consideration
Sublicense Consideration [Member]
Sublicense consideration.
Right-of-use assets
Deferred Tax Liabilities Right Of Use Assets
Amount of deferred tax liability attributable to taxable temporary differences from right-of-use assets.
Term of stock awards
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]
Collaborative Arrangement, Accounting Policy [Policy Text Block]
Collaborative Arrangements
Maximum
Maximum [Member]
Total financial liabilities measured at fair value on a recurring basis
Liabilities, Fair Value Disclosure
Liabilities, Fair Value Disclosure, Total
Statistical Measurement
Statistical Measurement [Axis]
Exercised
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Common Stock, Value, Issued, Beginning Balance
Common Stock, Value, Issued
Common Stock, Value, Issued, Total
Common Stock, Value, Issued, Ending Balance
Common stock, $0.001 par value; authorized shares - 350,000,000 at December 31, 2025 and 250,0000,000 at December 31, 2024; issued and outstanding - 115,359,735 at December 31, 2025 and 113,928,279 at December 31, 2024
Minimum age of employees
Defined Contribution Plan Minimum Age Of Employee
Represents minimum age of employees to become eligible for participation under defined contribution plans.
Principles of Consolidation
Consolidation, Policy [Policy Text Block]
Rule 10b51 Arr Modified Flag
Rule 10b51 Arr Modified Flag
Rule 10b5-1 Arrangement Modified
Schedule of sublease Income
Schedule of Other Nonoperating Income, by Component [Table Text Block]
Proceeds From F T Eight Three Six C I R M Award
Proceeds From F T Eight Three Six C I R M Award
Proceeds from FT836 CIRM award
Payments to Employees
Payments To Employees
Percentage of common stock ownership upon preferred stock conversion
Percentage Of Common Stock Ownership Upon Preferred Stock Conversion
Percentage of common stock ownership upon preferred stock conversion.
Net operating losses
Deferred Tax Assets, Operating Loss Carryforwards
Deferred Tax Assets, Operating Loss Carryforwards, Total
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Tax Credit Carryforward
Tax Credit Carryforward [Axis]
Sublicense consideration paid
Corresponding Asset For Sublicense Consideration Paid
Corresponding asset for sublicense consideration paid.
Aggregate Intrinsic Value
Share Based Compensation Arrangement By Share Based Payment Award Options Intrinsic Value [Abstract]
Aggregate Intrinsic Value
Impairment of Long-Lived Assets
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
State and local tax, net of federal income tax effect
Stock price appreciation milestones potential payments
Enterprise Value Milestone Payment
Enterprise value milestone payment.
Entity Public Float
Entity Public Float
Expected volatility
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Preferred stock, shares authorized
Preferred Stock, Shares Authorized
Research and development fees cash payments received
Proceeds From Research And Development Fees Received
Proceeds From Research and Development Fees Received.
Finite-Lived Intangible Assets by Major Class
Finite-Lived Intangible Assets by Major Class [Axis]
Award From California Institute For Regenerative Medicine Abstract
Award from the california institute for regenerative medicine.
Award From California Institute For Regenerative Medicine [Abstract]
Principal amount of the final fee payment
Debt Instrument, Annual Principal Payment
Unrealized Losses, Total
Unrealized Losses, Total
Unrealized Losses, Total
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Employee Stock [Member]
Employee Stock Purchase Plan
Entity Registrant Name
Entity Registrant Name
Unrealized Losses
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Unrealized Losses
Entity Voluntary Filers
Entity Voluntary Filers
Private placement of common stock, net of issuance costs (in shares)
Common Stock Issued During Period Shares Private Placement
Common stock issued during period shares private placement.
Summary of All Possible Stock Price Appreciation Milestone Payments
Common Stock Multiples And The Enterprise Value Milestone Payments Table [Text Block]
Common stock multiples and the enterprise value milestone payments.
Other Nonoperating Income (Expense)
Income expense in change in fair value of the stock price appreciation milestones
Total other income
Candidate 3
Candidate Three [Member]
Candidate Three [Member]
Additional paid-in capital
Additional Paid in Capital
Additional Paid in Capital, Total
Additional Paid in Capital, Beginning Balance
Additional Paid in Capital, Ending Balance
State tax expense
Deferred State and Local Income Tax Expense (Benefit)
Subsequent Events [Abstract]
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Income tax expense
Income Tax Expense (Benefit)
Loan and Security Agreement
Loan And Security Agreement [Member]
Loan and security agreement.
Measurement Frequency
Measurement Frequency [Axis]
Employee Retention Credit [Member]
Employee Retention Credit [Member]
Other Comprehensive Income (Loss), Tax [Abstract]
Other comprehensive gain:
Effective Income Tax Rate Reconciliation Changes In Uncertain Tax Positions Amount
Effective Income Tax Rate Reconciliation Changes In Uncertain Tax Positions Amount
Changes in unrecognized tax benefits
Conversion of preferred shares to common stock (in shares)
Conversion Of Preferred Shares To Common Stocks Shares
Conversion of preferred shares to common stock, shares
Stockholders' Equity
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Refundable Tax Credit
Refundable Tax Credit
RefundableTaxCredit
Concentration of Credit Risk
Concentration Risk, Credit Risk, Policy [Policy Text Block]
Liability Class
Liability Class [Axis]
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated other comprehensive income
Purchases of property and equipment
Payments to Acquire Property, Plant, and Equipment
Payments to Acquire Property, Plant, and Equipment, Total
Performance stock, granted
Granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Reconciliation of Cash, Cash Equivalents, and Restricted Cash
Restrictions on Cash and Cash Equivalents [Table Text Block]
Temporary Equity By Class Of Stock [Table]
Temporary Equity, by Class of Stock [Table]
Total assets
Assets
Schedule Of Property Plant And Equipment [Table]
Property, Plant and Equipment [Table]
Income Tax Paid, State and Local, after Refund Received
Income Tax Paid, State and Local, after Refund Received, Total
State
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Options Exercisable at the end of the period
Income Statement [Abstract]
Decrease related to prior year tax positions
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Decrease related to prior year tax positions
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding
Outstanding at the end of the period
Stock-Based Compensation
Share-Based Payment Arrangement [Policy Text Block]
Deferred federal or state tax expense
Deferred Income Tax Expense (Benefit)
Deferred Income Tax Expense (Benefit), Total
Stock Purchase Agreement
Stock Purchase Agreement [Domain]
Stock purchase agreement domain.
Inducement Plan
Inducement Plan [Member]
Inducement plan.
Awards available under the Inducement Plan
Award from California institute for regenerative medicine
Award From Regenerative Medicine Institute [Line Items]
Award from regenerative medicine institute.
Common stock issued
Public offerings of common stock, net of offering costs (in shares)
Stock Issued During Period, Shares, New Issues
Lease, Cost [Abstract]
Vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Earnings Per Share, Diluted, Total
Earnings Per Share, Diluted
Net loss per share, Diluted
Schedule of common stock reserved for future issuance
Schedule Of Common Stock Reserved For Future Issuance Table [Text Block]
Tabular disclosure of the common stock reserved for future issuance.
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of segment profit or loss, including segment expenses
Grant awarded
Grant Award
Grant award.
Title of Individual
Title and Position [Domain]
City Area Code
City Area Code
Auditor Name
First Disbursement Amount Under The Award
First Disbursement Amount Under The Award
The Premises 2020 Lease Agreement
Lease Agreements [Member]
Income Tax Examination, Penalties and Interest Expense
Income Tax Examination, Penalties and Interest Expense, Total
Interest or penalties
Risk-free interest rate
Fair Value Assumptions Risk Free Interest Rate1
Fair Value Assumptions Risk Free Interest Rate 1.
Upfront Fee and Equity Premium
Upfront Fee And Equity Premium [Member]
Upfront fee and equity premium.
Counterparty Name
Counterparty Name [Domain]
R&D tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
Changes in fair value of stock price appreciation milestones
Changes in fair value of stock price appreciation milestones liability
Change in fair value of stock price appreciation milestones
Increase Decrease In Fair Value Of Stock Price Appreciation Milestones
Increase decrease in fair value of stock price appreciation milestones.
Variable lease expense
Variable Lease, Cost
Clinical development milestone fees
Clinical Development Milestone Fees
Clinical Development Milestone Fees
Remaining weighted-average lease term
Operating Lease, Weighted Average Remaining Lease Term
Segment Reporting Information [Line Items]
Issuance of common stock upon vesting of restricted stock units (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Investments [Abstract]
Total property and equipment, net
Property and equipment, net
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net, Beginning Balance
Property, Plant and Equipment, Net, Ending Balance
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number
Options Vested and expected to vest at the end of the period
Issuance of common stock during period for private placements (in shares)
Stock Issued During Period Shares For Private Placement
Stock issued during period shares for private placement
Cash, cash equivalents and restricted cash at end of the year
Cash, cash equivalents and restricted cash at beginning of the year
Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Loss from operations
Operating Income (Loss)
Preferred shares converted into common stock percentage of ownership change upon notice
Percentage Of Common Stock Ownership For Preferred Stock Conversion Change Upon Notice
Percentage of common stock ownership for preferred stock conversion change upon notice.
Accumulated Deficit
Retained Earnings [Member]
Cash and Cash Equivalents
Cash and Cash Equivalents [Axis]
Non-Current Liability
Liabilities, Noncurrent
Liabilities, Noncurrent, Total
Estimated Fair Value, Less Than 12 Months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Operating lease liabilities, weighted-average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Operating lease liabilities, net of current portion
Operating Lease, Liability, Noncurrent
Quoted prices in Active Market for Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Preclinical and Investigational New Drug (IND), Award Granted
Preclinical and Investigational New Drug (IND), Award Granted
Preclinical and Investigational New Drug (IND), Award Granted
Net cash provided by financing activities
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Schedule of Components of Lease Expense
Lease, Cost [Table Text Block]
Expected to vest at the end of the period
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Expected To Vest Weighted Average Grant Date Fair Value
Share-based Compensation arrangement by share-based payment award equity instruments other than options expected to vest weighted average grant date fair value.
Auditor Location
Aggregate milestone payments
Collaborative Arrangement Aggregate Milestone Payments Receivable
Collaborative arrangement aggregate milestone payments receivable.
Private placement of common stock, net of issuance costs
Common Stock Issued During Period Value Private Placement
Common stock issued during period value private placement.
Nonoperating Income (Expense) [Abstract]
Other income (expense):
Other income:
Uncertain tax position description
Income Tax Examination, Likelihood of Unfavorable Settlement
Accrued Expenses And Long Term Debt Disclosure [Abstract]
Accrued expenses and long term debt disclosure.
Long-term Investments [Member]
Other Long-Term Investments [Member]
Schedule of Anti-Dilutive Securities not Included in Calculation of Diluted Net Loss Per Common Share
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
Corporate debt securities
Corporate Debt Securities [Member]
Income Tax Authority
Income Tax Jurisdiction [Domain]
Debt Securities, Available-for-Sale [Table]
Entity Interactive Data Current
Entity Interactive Data Current
Deferred revenue
Increase (Decrease) in Contract with Customer, Liability
Income Statement Location
Statement of Income Location, Balance [Domain]
Operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Furniture and Fixtures [Member]
Furniture and fixtures [Member]
Number of shares to be issued upon conversion
Convertible Preferred Stock, Shares Issued upon Conversion
Proceeds from related party
Proceeds from Related Party Debt
Additional shares reserved for issuance
Common Stock Capital Additional Shares Reserved For Future Issuance
Common stock capital additional shares reserved for future issuance.
Accretion and amortization of premiums and discounts on investments, net
Accretion (Amortization) of Discounts and Premiums, Investments
Deferred tax liabilities:
Components of Deferred Tax Liabilities [Abstract]
Issuance of common stock for license agreements (in shares)
Stock Issued During Period, Shares, Issued for Services
Entity Tax Identification Number
Entity Tax Identification Number
Closing stock price as of measurement date
Share Price
Long-term Debt, Type
Long-Term Debt, Type [Axis]
Straight-line lease expense
Straight Line Rent Adjustments
Amended MSKCC License [Member]
Amended MSKCC License [Member]
FT516
F T Five One Six [Member]
FT516.
Summary of stock option activity and related information under all equity plans
Schedule of Stock Options Roll Forward [Table Text Block]
Local Phone Number
Local Phone Number
Related Party Transaction
Related Party Transaction [Domain]
Unrealized Gains
Debt Securities, Available-for-Sale, Unrealized Gain
Unrealized Gains
Unrecognized compensation cost related to outstanding options
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount
Auditor Opinion [Text Block]
Auditor Opinion
Non-Voting Class A Preferred Stock
Preferred Class A [Member]
Collaboration contract assets
Collaboration contract asset
Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent
Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent, Total
Computer And Office Equipment [Member]
Represents information pertaining to computer and office equipment.
Computer and office equipment [Member]
Short term investments, maturity end range
Short Term Investment Maturity Period Range End
Short-term investment maturity period range end.
Revenue recognized
Collaboration revenue
Revenue from Contract with Customer, Excluding Assessed Tax
Revenue from Contract with Customer, Excluding Assessed Tax, Total
Net Income (Loss) Attributable to Parent [Abstract]
Numerator:
Lessee, Operating Lease, Liability, to be Paid, Year Four
2029
Class of Stock
Class of Stock [Domain]
Commercial Paper
Commercial Paper [Member]
Expected recognition period of unrecognized compensation cost
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Office Equipment
Office Equipment [Member]
Entity Emerging Growth Company
Entity Emerging Growth Company
Tax Credit Carryforward, Name
Tax Credit Carryforward, Name [Domain]
Collaborative arrangement potential additional milestones
Collaborative Arrangement Potential Additional Milestones
Collaborative arrangement potential additional milestones.