Consolidated Statements of Financial Condition (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Securities held-to-maturity, allowance for credit losses	$ 1,100	$ 862
Securities held-to-maturity, fair value	$ 62,550	$ 62,029
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	34,087,623	34,087,623
Common stock, shares outstanding (in shares)	29,476,391	30,526,353
Treasury stock, at average cost (in shares)	4,611,232	3,561,270
Collateralized Mortgage Backed Securities
Securities held-to-maturity, assets pledged	$ 4,550	$ 5,643
Securities held-to-maturity, fair value	6,989	8,667
Securities available for sale, pledged as collateral	172,235	212,388
Securities available for sale, fair value option	295	388
Other Debt Obligations
Securities held-to-maturity, allowance for credit losses	1,100	862
Securities held-to-maturity, assets pledged	0	0
Securities held-to-maturity, fair value	55,561	53,362
Securities available for sale, pledged as collateral	0	0
Securities available for sale, fair value option	$ 12,728	$ 14,180