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Income Taxes (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Sep. 30, 2022
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Valuation allowance | $ 3,254 | $ 2,976
Tax Credit Carryforward [Line Items] |  |
U.S. capital loss carryforward | 600 |
United States Federal Tax Jurisdiction |  |
Tax Credit Carryforward [Line Items] |  |
Federal and state research and development tax credits | 4,100 |
U.S. capital loss carryforward | 200 |
Deferred Tax Assets, Other Tax Carryforwards | 200 |
Foreign Tax Authority |  |
Tax Credit Carryforward [Line Items] |  |
Non-U.S. operating losses | $ 200 |

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