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CIRM Grants (Details) - LAD-1 CIRM Grant [Member] $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2023 USD ($) Milestone | Apr. 30, 2019 USD ($)
CIRM Grants [Abstract] |  |
Grant award for clinical development support |  | $ 7.5
Milestone payments received | $ 5.9 |
Number of milestones achieved | Milestone | 0 |

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- Details
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