Note 22 - Parent Company Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
Securities available for sale, at fair value	$ 521,519	$ 608,062
Other assets	76,844	51,478
Total assets	3,090,717	3,065,902	$ 3,065,902	$ 3,334,597
Junior subordinated debt	28,435	28,334
Other liabilities	18,253	19,165
Shareholders' equity	343,168	321,174		$ 354,792	$ 337,894
Total Liabilities and Shareholders' Equity	3,090,717	3,065,902
Parent Company [Member]
Cash	4,343	3,906
Securities available for sale, at fair value	1,506	1,639
Due from subsidiaries	264	152
Other assets	0	2,222
Total assets	372,145	349,932
Junior subordinated debt	28,435	28,334
Other liabilities	542	424
Shareholders' equity	343,168	321,174
Total Liabilities and Shareholders' Equity	372,145	349,932
Parent Company [Member] | Subsidiaries [Member]
Investment in subsidiaries	$ 366,032	$ 342,013