Loans Held for Sale - Delinquent and Non-performing Loans Sold During the Period Indicated (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) loan	Sep. 30, 2022 USD ($) loan	Sep. 30, 2023 USD ($) loan	Sep. 30, 2022 USD ($) loan
Nonperforming Financial Instruments [Member]
Loans sold | loan			13	2
Proceeds			$ 7,042	$ 4,117
Net Charge-offs			(8)
Net gain			$ 108	$ 73
Nonperforming Financial Instruments [Member] | Multi-family Residential Portfolio Segment [Member]
Loans sold | loan			7
Proceeds			$ 3,622
Net gain			$ 69
Nonperforming Financial Instruments [Member] | Commercial Real Estate [Member]
Loans sold | loan			3	1
Proceeds			$ 1,867	$ 3,687
Net Charge-offs			$ (8)
Net gain				$ 73
Nonperforming Financial Instruments [Member] | One-To-Four Family - Mixed-Use Property Portfolio Segment [Member]
Loans sold | loan			3	1
Proceeds			$ 1,553	$ 430
Net gain			$ 39
Performing Financial Instruments [Member]
Loans sold | loan	2	1	2	6
Proceeds	$ 2,000	$ 10,682	$ 2,000	$ 25,130
Performing Financial Instruments [Member] | Multi-family Residential Portfolio Segment [Member]
Loans sold | loan		1		5
Proceeds		$ 10,682		$ 20,818
Performing Financial Instruments [Member] | Commercial Real Estate [Member]
Loans sold | loan	2		2	1
Proceeds	$ 2,000		$ 2,000	$ 4,312