Note 22 - Parent Company Financial Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Securities available for sale, at fair value	$ 692,467	$ 466,091
Other assets	32,334	31,288
Total assets	3,334,597	3,050,010	$ 2,478,550
Subordinated debt	0	7,500
Junior subordinated debt	28,232	28,130
Other liabilities	20,092	22,605
Shareholders' equity	354,792	337,894	$ 320,258	$ 222,542
Total Liabilities and Shareholders' Equity	3,334,597	3,050,010
Parent Company [Member]
Cash	10,560	17,759
Securities available for sale, at fair value	1,766	8,534
Investment in subsidiaries	372,902	351,033
Due from subsidiaries	128	143
Other assets	607	1,062
Total assets	385,963	378,531
Subordinated debt	0	7,500
Junior subordinated debt	28,232	28,130
Other liabilities	2,939	5,007
Shareholders' equity	354,792	337,894
Total Liabilities and Shareholders' Equity	$ 385,963	$ 378,531