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Borrowings - Additional Information (Details) - USD ($)
Sep. 30, 2024
Jun. 30, 2024
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]    
Borrowings $ 20,000,000  
Federal Home Loan Bank of New York (FHLB-NY)    
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]    
Maximum borrowing capacity 100,000,000 $ 100,000,000
Borrowings 20,000,000 0
Federal Reserve Bank of New York (FRB-NY)    
Federal Home Loan Bank, Advance, Branch of FHLBank [Line Items]    
Authorized borrowings $ 25,000,000 $ 25,000,000