Note 14 - Earnings Per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income available to common shareholders	$ 30,021	$ 24,008	$ 13,035
Weighted-average common shares outstanding (in shares)	5,644,599	5,321,687	4,586,224
Basic EPS (in dollars per share)	$ 5.32	$ 4.51	$ 2.84
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total (in shares)	34,540	41,475	30,140
Weighted-average common and potentially dilutive shares outstanding (in shares)	5,679,139	5,363,162	4,616,364
Diluted EPS (in dollars per share)	$ 5.29	$ 4.48	$ 2.82