Note 9 - Net Income (Loss) Per Share of Common Stock - Summary of Computation of Basic and Diluted Net Loss Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net income (loss) attributable to common stockholders - basic		$ 18,008	$ (18,477)	$ (31,948)	$ (31,534)
Subtract: fair value adjustment of warrant liability (1)	[1]	29,592	0	0	0
Net income (loss) attributable to common stockholders - diluted		$ (11,584)	$ (18,477)	$ (31,948)	$ (31,534)
Weighted-average shares outstanding - basic (in shares)		75,727	30,505	75,721	25,844
Dilutive effect of common stock warrants (in shares)		23,038	0	0	0
Dilutive effect of options outstanding (in shares)		872	0	0	0
Weighted-average shares outstanding - diluted (in shares)		99,637	30,505	75,721	25,844
Basic (in dollars per share)		$ 0.24	$ (0.61)	$ (0.42)	$ (1.22)
Diluted (in dollars per share)		$ (0.12)	$ (0.61)	$ (0.42)	$ (1.22)

[1] The Company assumes that the warrants will be share settled as they are considered dilutive and therefore the fair value adjustment is removed from the numerator in the diluted earnings per share calculation.