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Document Fiscal Year Focus Expected convertion to revenue by 2026. Expected Convertion to Revenue by 2026 Expected convertion to revenue by 2026 Preferred shares, no par value, 2,000 shares authorized; none issued and outstanding as of September 30, 2024 and December 31, 2023 Preferred Stock, Value, Issued Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Total Number of Options Outstanding, Options forfeited Broadwood Partners, L.P [Member] Broadwood Partners, L.P [Member] Accounting standard update 2014-09. 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Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options to be Vested In Period Number of restricted stock units to be vested Rent for remaining twelve months Lessee, Operating Lease, Liability, to be Paid, Year Two 2025 Operating Lease Right Of Use Asset Accumulated Amortization Operating Lease Right Of Use Asset Accumulated Amortization Accumulated amortization Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted Average Exercise Price of Options, Options exercised Auditor Firm ID Minimum [Member] Common Stock [Member] Common Shares Restricted Cash Restricted cash Restricted Cash, Total Deposit assets Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts Payable and Accrued Liabilities Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Weighted Average Grant Date Fair Value Per Share, Ending balance Weighted Average Grant Date Fair Value Per Share, Beginning balance IPR&D - OPC1 [Member] IPR&D - OPC1 [Member] Office and Laboratory Space, Jerusalem, Israel [Member] Office and Laboratory Space, Jerusalem, Israel [Member] Common stock capital value maximum authorized shares available for future issuance. Common Stock Capital Value Maximum Authorized Shares Available For Future Issuance Amount reserved for future issuance Net proceeds Adjustments to reconcile net loss attributable to Lineage Cell Therapeutics, Inc.to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Lessee, Operating Sublease, Option to Extend Sublease agreement option to extend Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive loss, net of tax: Statement of Income Location, Balance [Domain] Rent for first twelve months Lessee, Operating Lease, Liability, to be Paid, Year One 2024 Goodwill and Intangible Assets Disclosure [Abstract] Entity Common Stock, Shares Outstanding Disaggregation of Revenue [Line Items] Schedule of supplemental cash flow information related to leases [Table Text Block] Schedule of Supplemental Cash Flow Information Related to Leases Equity, Attributable to Noncontrolling Interest Equity, Attributable to Noncontrolling Interest, Ending Balance Equity, Attributable to Noncontrolling Interest, Beginning Balance Noncontrolling deficit Equity, Attributable to Noncontrolling Interest, Total Noncontrolling deficit Title and Position [Domain] Cell cure leases. 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Schedule Of Securities Owned Readily Marketable [Table Text Block] Schedule Of Fair Value Of Marketable Securities Revenues Revenues Total revenues Total revenues US Treasury Securities [Member] Foreign currency transaction gain (loss), net Gain (Loss), Foreign Currency Transaction, before Tax Gain (Loss), Foreign Currency Transaction, before Tax, Total Foreign currency remeasurement and other loss Credit Facility [Axis] Carlsbad Sub Lease [Member] Carlsbad Sub Lease [Member] Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Shares issued upon vesting of restricted stock units, net of shares retired to pay employees' taxes, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Operating Lease Right Of Use Asset Before Accumulated Amortization Operating Lease Right Of Use Asset Before Accumulated Amortization Right-of-use assets Net Cash Provided by (Used in) Financing Activities [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES: Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted Average Exercise Price of Options Outstanding, Ending balance Weighted Average Exercise Price of Options Outstanding, Beginning balance Asset Class [Axis] Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Intangible assets, net Agreements With Hadasit And I I A. 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