Note 12 - Earnings Per Common Share - Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Weighted average number of common shares outstanding used in basic earnings per common share calculation (in shares)	4,343,720	4,338,922
Restricted stock awards and options (in shares)	26,324	29,112
Weighted average number of shares outstanding adjusted for effect of dilutive securities (in shares)	4,370,044	4,368,034
Net income	$ 1,318	$ 1,634
Basic earnings per share (in dollars per share)	$ 0.3	$ 0.38
Diluted earnings per share (in dollars per share)	$ 0.3	$ 0.37