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Income Taxes - Additional Information (Detail) - USD ($) | 12 Months Ended |
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Sep. 30, 2025 | Sep. 30, 2024 | Jan. 01, 2025
Income Tax Disclosure [Line Items] |  |  |
Deferred tax asset | $ 37,848,000 | $ 41,159,000 |
Income Tax Disclosure [Abstract] |  |  |
Net change in valuation allowance | (2,000,000) | $ (2,300,000) |
Unrecognized income tax benefits | $ 0 |  |
State |  |  |
Income Tax Disclosure [Abstract] |  |  |
Net operating loss carry forwards |  |  | $ 300,000
State | Minimum |  |  |
Income Tax Disclosure [Abstract] |  |  |
Expiration date of net operating loss carryforward | Dec. 31, 2025 |  |
State | Maximum |  |  |
Income Tax Disclosure [Abstract] |  |  |
Expiration date of net operating loss carryforward | Dec. 31, 2038 |  |
Federal |  |  |
Income Tax Disclosure [Abstract] |  |  |
Number of years for examination | 4 years |  |
New York |  |  |
Income Tax Disclosure [Abstract] |  |  |
Number of years for examination | 4 years |  |
Connecticut |  |  |
Income Tax Disclosure [Abstract] |  |  |
Number of years for examination | 4 years |  |
Pennsylvania |  |  |
Income Tax Disclosure [Abstract] |  |  |
Number of years for examination | 4 years |  |
New Jersey |  |  |
Income Tax Disclosure [Abstract] |  |  |
Number of years for examination | 5 years |  |

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-3 + Details
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