Note 12 - Net Income (Loss) Per Share - Calculation of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Net income (loss)	$ (640)	$ 4,057	$ 3,105
Basic (in shares)	39,317	38,602	38,015
Effect of dilutive stock options, unvested restricted stock units, and shares of common stock expected to be issued under employee stock purchase plan (in shares)	0	445	922
Diluted weighted average common shares outstanding (in shares)	39,317	39,047	38,937
Basic (in dollars per share)	$ (0.02)	$ 0.11	$ 0.08
Diluted (in dollars per share)	$ (0.02)	$ 0.1	$ 0.08