Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	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