Note 18 - Condensed Parent Company Only Statements - Statements of Financial Condition (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash and cash equivalents	$ 46,642	$ 376,722
Total assets	2,031,672	2,215,858	$ 2,184,587
Other liabilities	70,056	68,478
Preferred stock (par value $0.01 per share) Authorized - 50,000,000 shares in 2022 and 2021, no shares issued	0	0
Common stock (par value $.01 per share) Authorized - 100,000,000 shares at December 31, 2022 and at December 31, 2021, Issued and Outstanding - 22,174,225 at December 31, 2022 and 24,795,124 at December 31, 2021	222	248
Additional paid-in capital	128,550	174,505
Retained earnings	274,246	273,398
Unearned ESOP shares	(13,056)	(14,243)
Accumulated other comprehensive loss, net of taxes	(19,476)	(1,135)
Total shareholders’ equity	370,486	432,773	$ 413,118	$ 393,686
Total liabilities and shareholders’ equity	2,031,672	2,215,858
Parent Company [Member]
Cash and cash equivalents	51,767	71,158
Investment in subsidiaries	323,010	378,247
Other assets	238	892
Total assets	375,015	450,297
Other liabilities	4,529	17,524
Preferred stock (par value $0.01 per share) Authorized - 50,000,000 shares in 2022 and 2021, no shares issued	0	0
Common stock (par value $.01 per share) Authorized - 100,000,000 shares at December 31, 2022 and at December 31, 2021, Issued and Outstanding - 22,174,225 at December 31, 2022 and 24,795,124 at December 31, 2021	222	248
Additional paid-in capital	128,550	174,505
Retained earnings	274,246	273,398
Unearned ESOP shares	(13,056)	(14,243)
Accumulated other comprehensive loss, net of taxes	(19,476)	(1,135)
Total shareholders’ equity	370,486	432,773
Total liabilities and shareholders’ equity	$ 375,015	$ 450,297