Note 6 - Earnings Per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net income available to common shareholders	$ 4,935	$ 5,362	$ 9,993	$ 12,402
Weighted-average common shares outstanding (in shares)	5,735,606	5,670,769	5,728,982	5,660,255
Basic EPS (in dollars per share)	$ 0.86	$ 0.95	$ 1.74	$ 2.19
Weighted Average Number of Shares Outstanding, Diluted, Adjustment (in shares)	29,905	33,703	34,781	37,865
Weighted-average common and potentially dilutive shares outstanding (in shares)	5,765,511	5,704,472	5,763,763	5,698,120
Diluted EPS (in dollars per share)	$ 0.86	$ 0.94	$ 1.73	$ 2.18