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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 21.00% | 21.00%
Research and development credit | $ 4,639 | $ 4,929
Unrecognized Tax Benefits | 0 |
Capitalized Research And Experimental | 3,893 | $ 1,916
Domestic Tax Authority [Member] | Internal Revenue Service (IRS) [Member] |  |
Deferred Tax Assets, Net | 0 |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | 42,940 |
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration | 16,489 |
Research and development credit | 2,887 |
State and Local Jurisdiction [Member] |  |
Research and development credit | 375 |
State and Local Jurisdiction [Member] | CALIFORNIA [Member] | Internal Revenue Service (IRS) [Member] |  |
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration | $ 5,288 |

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