v3.25.1
Loan Portfolio and Allowance for Credit Losses, Performance of Loans Modified to Borrowers Experiencing Financial Difficulty (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Mar. 31, 2024
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans $ 197 $ 85
New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 197 0
Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 85
30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 122 0
60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 122 0
60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 75 85
Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 75 0
Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 85
Commercial [Member] | Commercial Real Estate [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Commercial Real Estate [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Commercial Real Estate [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Commercial Real Estate [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Commercial Real Estate [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Commercial Real Estate [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Commercial Real Estate [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Other [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Other [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Other [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Commercial [Member] | Other [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Commercial [Member] | Other [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 75 85
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 75 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 85
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 75 85
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 75 0
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 85
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Loans [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 122 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 122 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 122 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 122 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Installment [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 30 - 59 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 30 - 59 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Installment [Member] | 30 - 59 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 60 - 89 Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 60 - 89 Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Installment [Member] | 60 - 89 Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 90+ Days Past Due [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | 90+ Days Past Due [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Installment [Member] | 90+ Days Past Due [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | Current [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans 0 0
Installment [Member] | Current [Member] | New York and Other States [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans [1] 0 0
Installment [Member] | Current [Member] | Florida [Member]    
Performance of Loans Modified to Borrowers Experiencing Financial Difficulty [Abstract]    
Performance of modified loans $ 0 $ 0
[1] Includes New York, New Jersey, Vermont and Massachusetts.