Note 5 - Earnings (Loss) Per-share - Reconciliation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended					9 Months Ended
	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Net income (loss)	$ 2,646	$ 15	$ 209	$ 315	$ (786)	$ 4,063	$ (262)
Weighted-average shares of common stock outstanding (in shares)	22,081		21,577			22,019	21,757
Income (loss) per common share - Basic (in dollars per share)	$ 0.12		$ 0.01			$ 0.18	$ (0.01)
Dilutive options and warrants outstanding (in shares)	4,266		361			2,663	0
Weighted-average number of shares used in diluted per share computation (in shares)	26,347		21,938			24,682	21,757
Income (loss) per common share - Diluted (in dollars per share)	$ 0.1		$ 0.01			$ 0.16	$ (0.01)