Note 9 - Net Loss Per Share - Schedule of Net Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net loss	$ (3,896)	$ (5,162)
Weighted-average number of shares outstanding, basic and diluted (in shares)	7,452,957	6,789,955
Net loss per share, basic and diluted (in dollars per share)	$ (0.52)	$ (0.76)
Anti-dilutive shares excluded from computation of net loss per share (in shares) (in shares)	1,933,242	2,074,627