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Income Taxes - Additional Information (Detail) - USD ($)
12 Months Ended 42 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2023
Jan. 01, 2024
Income Tax Disclosure [Line Items]        
Deferred tax asset $ 41,159,000 $ 39,993,000 $ 39,993,000  
Income Tax Disclosure [Abstract]        
Net change in valuation allowance (2,300,000) 300,000    
Unrecognized income tax benefits $ 0      
State        
Income Tax Disclosure [Abstract]        
Net operating loss carry forwards       $ 600,000
State | Minimum        
Income Tax Disclosure [Abstract]        
Expiration date of net operating loss carryforward Dec. 31, 2023      
State | Maximum        
Income Tax Disclosure [Abstract]        
Expiration date of net operating loss carryforward Dec. 31, 2037      
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      
CARES Act        
Income Tax Disclosure [Line Items]        
Deferral payment of social security taxes     5,200,000  
Deferred tax asset $ 0 $ 1,500,000 $ 1,500,000