Note 24 - Accumulated Other Comprehensive Income (Loss) - Reclassifications Out of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Realized gain on sale of securities	$ 35	$ 814	$ 607
Income taxes	11,713	7,137	4,861
Net of tax	43,526	30,045	20,906
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net of tax	28	638	215
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Realized gain on sale of securities	35	814	274
Income taxes	$ (7)	$ (176)	$ (59)