Note 21 - Parent Corporation Only Financial Statements - Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Cash and due from banks	$ 61,629	$ 54,352
Investment securities	634,884	534,507
Equity securities	15,811	13,794
Other assets	125,069	50,417
Total assets	9,644,948	8,129,480
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other liabilities	87,301	38,754
Subordinated debentures, net of debt issuance costs	153,255	152,951
Balance	1,178,751	1,124,212	$ 915,310	$ 731,190
Total liabilities and stockholders’ equity	9,644,948	8,129,480
Parent Company [Member]
ASSETS
Cash and due from banks	117,162	133,648
Investment in subsidiaries	1,179,342	1,111,520
Investment securities	32,405	32,405
Equity securities	4,218	725
Other assets	699	699
Total assets	1,333,826	1,278,997
LIABILITIES AND STOCKHOLDERS’ EQUITY
Other liabilities	1,820	1,834
Subordinated debentures, net of debt issuance costs	153,255	152,951
Balance	1,178,751	1,124,212
Total liabilities and stockholders’ equity	$ 1,333,826	$ 1,278,997