Note 1 - Nature of Operations, Basis of Presentation and Consolidation - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Net income (loss) available to common stockholders	$ 257	$ (105)
Basic (in shares)	11,424	11,254
Basic (in dollars per share)	$ 0.02	$ (0.01)
Non-vested restricted stock	$ 0	$ 0
Non-vested restricted stock (in shares)	4	0
Net income (loss) available to common stockholders plus assumed dilution	$ 257	$ (105)
Diluted (in shares)	11,428	11,254
Net income (loss) available to common stockholders plus assumed dilution (in dollars per share)	$ 0.02	$ (0.01)