Note 13 - Earnings Per Share - Reconciliation of Basic and Diluted Income Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Net Income	$ 9,039	$ 8,161
Weighted-average basic shares outstanding (in shares)	8,777,066	8,919,602
Incremental Common Shares Attributable to Share-based Payment Arrangements, Total (in shares)	33,000	95,000
Weighted-average diluted shares (in shares)	8,809,603	9,014,985
Basic earnings per share (in dollars per share)	$ 1.03	$ 0.91
Diluted earnings per share (in dollars per share)	$ 1.03	$ 0.91