Note 11 - Net Loss Per Share - Basic and Diluted Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Net loss	$ (11,571)	$ (11,907)
Weighted-average shares used in computing net loss per share, basic and diluted (in shares)	21,179,974	17,720,972
Net loss per share, basic and diluted (in dollars per share)	$ (0.55)	$ (0.67)