Note 4 - Earnings Per Share - Summary of Basic EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Basic EPS, income	$ 1,753	$ 2,674
Weighted Average Shares Outstanding (Basic) (in shares)	3,228,666	3,253,112
Net Income Per Common Share (Basic) (in dollars per share)	$ 0.54	$ 0.82