Consolidated Statements of Financial Condition (Parenthetical) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Loans receivable, allowance for loan losses	$ 33,608,000	$ 33,608,000	$ 32,373,000
Preferred stock, par value per share	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized	10,000,000	10,000,000	10,000,000
Preferred stock, shares issued	2,528	2,528	2,124
Preferred stock, shares outstanding	2,528	2,528	2,124
Common stock, no par value	$ 0	$ 0	$ 0
Common stock, shares authorized	40,000,000	40,000,000	40,000,000
Common stock, shares issued	20,138,294	20,138,294	19,898,197
Common stock, shares outstanding	16,904,323	16,904,323	16,930,979
Treasury stock, shares	3,233,971	3,233,971	2,967,218
Series H Preferred Stock [Member]
Preferred stock, dividend rate	3.50%	3.50%	3.50%
Preferred stock, liquidation preference per share			$ 10,000
Series I Preferred Stock [Member]
Preferred stock, dividend rate		3.00%	3.00%
Preferred stock, liquidation preference per share	$ 10,000	$ 10,000	$ 10,000
Series J Preferred Stock [Member]
Preferred stock, dividend rate		8.00%
Preferred stock, liquidation preference per share	$ 10,000	$ 10,000