Loan Portfolio and Allowance for Credit Losses, Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty (Details) - Payment Delay [Member]		3 Months Ended			6 Months Ended
		Jun. 30, 2024		Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term		30 months		64 months	30 months	64 months
New York and Other States [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term	[1]	36 months		40 months	36 months	40 months
Florida [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term		6 months	[1]	24 months	18 months	24 months
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term		12 months		46 months	12 months	46 months
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | New York and Other States [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term	[1]	12 months		22 months	12 months	22 months
Real Estate Mortgage - 1 to 4 Family [Member] | First Mortgages [Member] | Florida [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term				24 months	12 months	24 months
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term		18 months		18 months	18 months	18 months
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | New York and Other States [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term	[1]	24 months		18 months	24 months	18 months
Real Estate Mortgage - 1 to 4 Family [Member] | Home Equity Lines of Credit [Member] | Florida [Member]
Financial Effect of Modifications Made to Borrowers Experiencing Financial Difficulty [Abstract]
Weighted average term		6 months			6 months

[1] Includes New York, New Jersey, Vermont and Massachusetts.