Note 7 - Earnings Per Share - Summary of Reconciliation of Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Net loss — basic	$ (11,730)	$ (10,338)
Weighted average shares outstanding — basic (in shares)	21,521	20,730
Basic loss per share (in dollars per share)	$ (0.55)	$ (0.5)
Weighted average shares outstanding — diluted (in shares)	21,521	20,730
Diluted loss per share (in dollars per share)	$ (0.55)	$ (0.5)