v3.26.1
Loans and Allowance for Credit Losses on Loans (Details)
12 Months Ended
Jun. 30, 2026
USD ($)
Loan
Jun. 30, 2025
USD ($)
Loan
Loans and Allowance for Credit Losses on Loans [Abstract]    
Financing Receivable, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration] Accrued interest receivable Accrued interest receivable
Loans on non-accrual $ 3,936,000 $ 3,060,000
Nonaccrual loans with recent history of delinquency greater than 90 days 1,700,000 1,200,000
Accruing loans delinquent more than 90 days 0 0
Threshold principal amount of collateral dependent loans evaluated individually 250,000  
Total [1],[2] 1,753,342,000 1,627,406,000
Loans evaluated individually, amortized cost basis 1,600,000 751,000
Loans evaluated individually, allowance for credit losses on loans 466,000 549,000
Foreclosed real estate 0 0
Federal Home Loan Bank of New York [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Loans pledged as collateral 721,400,000 634,600,000
Doubtful [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Total 0 0
Loss [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Total 0 0
Unfunded Commitment [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Allowance for credit losses $ 1,400,000 $ 1,800,000
Residential Real Estate [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Number of loans in the process of foreclosure (in Loan) | Loan 4 3
Loans in the process of foreclosure $ 745,000 $ 841,000
Collateral dependent loans evaluated individually, amortized cost basis $ 170,000 $ 751,000
Commercial Real Estate Portfolio [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Number of loans in the process of foreclosure (in Loan) | Loan   1
Loans in the process of foreclosure   $ 142,000
Number of loans upgraded (in Loan) | Loan 4 5
Collateral dependent loans evaluated individually, amortized cost basis $ 1,400,000  
Number of loan modified (in Loan) | Loan 1  
Commercial Real Estate Portfolio [Member] | Pass [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Number of loans upgraded (in Loan) | Loan 2 15
Number of loan relationships downgraded   11
Commercial Real Estate Portfolio [Member] | Real Estate Mortgage [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Loans on non-accrual $ 790,000 $ 628,000
Total $ 1,146,786,000 $ 1,054,504,000
Number of loans upgraded (in Loan) | Loan 5 10
Commercial Real Estate Portfolio [Member] | Real Estate Mortgage [Member] | Pass [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Total $ 1,112,929,000 $ 1,022,581,000
Number of loans upgraded (in Loan) | Loan 3 10
Number of loan relationships downgraded | Loan 7 14
Consumer Portfolio [Member] | Uncollateralized [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Threshold period to charge off loans against allowance for loan losses 90 days  
Threshold period to charge off overdrawn deposit accounts against allowance for loan losses 60 days  
Commercial Portfolio [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Loans on non-accrual $ 102,000 $ 135,000
Total 141,524,000 116,769,000
Commercial Portfolio [Member] | Pass [Member]    
Loans and Allowance for Credit Losses on Loans [Abstract]    
Total $ 135,415,000 $ 109,250,000
Number of loan relationships downgraded | Loan 4  
[1] Loan balances exclude accrued interest receivable of $7.7 million and $7.0 million at June 30, 2026 and 2025, respectively, which is included in accrued interest receivable in the consolidated statements of financial condition.
[2] Loan balances include net deferred (fees)/costs of ($397,000) and ($567,000) at June 30, 2026 and 2025, respectively.