Note 12 - Net Loss Per Share of Common Stock (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended
	December 31,
	2022			2021
Net loss	$	(76,322	)	$	(39,151	)
Basic and diluted net loss per share	$	(2.10	)	$	(1.95	)
Weighted-average shares used to compute basic and diluted net loss per share		36,372			20,070

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Year Ended
	December 31,
	2022		2021
Options to purchase common stock		4,570,432		2,439,253
Common stock warrants		50,029,052		—