Note 14 - Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

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

	Year Ended December 31,
	2023			2022
Net loss	$	(82,465	)	$	(107,758	)
Shares used to compute net loss per share, basic and diluted		144,819,781			127,683,813
Net loss per share attributable to common stockholders, basic and diluted	$	(0.57	)	$	(0.84	)

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

	Year Ended December 31,
	2023		2022
Options to purchase common stock	17,270,980			13,567,390
Restricted stock unit to purchase common stock		2,931,662		460,975
Warrants to purchase common stock	227,434			228,725
Employee Stock Purchase Plan		402,699		392,095
Total potentially dilutive securities excluded from denominator of the diluted earnings per share computation		20,832,775		14,649,185