Note 6 - Earnings (Loss) Per Share - Computation of Basic and Diluted Net Income (Loss) per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net loss	$ (26,115)	$ (16,944)	$ (49,285)	$ (33,237)
Basic (in shares)	39,364,720	29,488,561	38,863,694	29,181,913
Diluted (in shares)	39,364,720	29,488,561	38,863,694	29,181,913
Basic (in dollars per share)	$ (0.66)	$ (0.57)	$ (1.27)	$ (1.14)
Diluted (in dollars per share)	$ (0.66)	$ (0.57)	$ (1.27)	$ (1.14)