Note 9 - Net Loss Per Share - Schedule of Net 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		$ (3,629)	$ (34,787)	$ (8,791)	$ (60,587)
Weighted-average number of shares outstanding, basic and diluted (*) (in shares)	[1]	6,973,218	6,483,931	6,881,648	6,439,658
Net loss per share, basic and diluted (in dollars per share)	[1]	$ (0.52)	$ (5.37)	$ (1.28)	$ (9.41)
Anti-dilutive shares excluded from computation of net loss per share (in shares)(*) (in shares)		2,350,812	1,925,388	2,047,993	1,946,983

[1] The number of shares and per share amounts have been retroactively restated to reflect the one for twelve (1 for 12) reverse stock split, which was effective on March 22, 2024.