Note 2 - Earnings Per Share - Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2022
Net income available to common stockholders	$ 2,312	$ 2,567	$ 4,945	$ 3,835	$ 3,835
Basic and diluted weighted average common shares outstanding (in shares)	12,667,129	13,165,023	12,694,334		13,184,424
Basic and diluted earnings per common share (in dollars per share)	$ 0.18	$ 0.19	$ 0.39		$ 0.29