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Income Taxes (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Sep. 30, 2024
--- | --- | ---
Income Tax Disclosure [Abstract] |  |
Valuation allowance | $ 3,217 | $ 3,317
Tax Credit Carryforward [Line Items] |  |
U.S. capital loss carryforward | 37,300 |
United States Federal Tax Jurisdiction |  |
Tax Credit Carryforward [Line Items] |  |
Federal and state research and development tax credits | 2,800 |
U.S. capital loss carryforward | 38,700 |
Deferred Tax Assets, Other Tax Carryforwards | 100 |
Foreign Tax Jurisdiction |  |
Tax Credit Carryforward [Line Items] |  |
Non-U.S. operating losses | $ 100 |

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible capital loss carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-6 + Details
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