Note 11 - Net Loss Per Share Attributable to Common Stockholders (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

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

	Three Months Ended September 30,						Nine Months Ended September 30,
	2024			2023			2024			2023
Net loss	$	(14,080	)	$	(17,400	)	$	(54,963	)	$	(65,090	)
Shares used to compute net loss per share – basic and diluted		227,452,883			152,026,112			193,655,660			145,810,175
Net loss per share – basic and diluted	$	(0.06	)	$	(0.11	)	$	(0.28	)	$	(0.45	)

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

	Three Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Options to purchase common stock		21,568,098		18,151,747		20,435,908		17,019,217
Restricted stock units to purchase common stock		3,090,220		3,629,741		2,763,739		2,840,178
Warrants to purchase common stock		140,596		227,434		164,150		227,434
Employee Stock Purchase Plan		368,002		337,496		279,880		379,720
Total potentially dilutive securities excluded from denominator of the diluted earnings per share computation		25,166,916		22,346,418		23,643,677		20,466,549