Consolidated Statements of Financial Condition (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Securities available for sale, at fair value, amortized cost	$ 1,083,669	$ 1,037,990
Securities held to maturity, allowance for credit losses	3	4
Securities held to maturity, fair value	131,269	137,030
Loans, allowance for credit losses	43,075	51,082
Debt issuance costs	$ 390	$ 468
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	16,099,556	16,099,556
Treasury stock, shares	652,607	692,150
Series A 3% Preferred Stock [Member]
Preferred stock, par value	$ 100	$ 100
Preferred stock, shares authorized	1,533	1,533
Preferred stock, shares issued	1,435	1,435
Preferred stock, dividend percentage	3.00%	3.00%
Series B-1 8.48% Preferred Stock [Member]
Preferred stock, par value	$ 100	$ 100
Preferred stock, shares authorized	200,000	200,000
Preferred stock, shares issued	171,486	171,486
Preferred stock, dividend percentage	8.48%	8.48%