Note 6 - Earnings (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

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

		*Three months ended June 30,*								*Six months ended June 30,*
		*2023*				*2022*				*2023*				*2022*
Numerator:
Net loss		$	(16,944	)		$	(14,456	)		$	(33,237	)		$	(30,518	)
Denominator:
Weighted average shares used to compute net loss per share
Basic			29,489				27,612				29,182				27,537
Diluted			29,489				27,612				29,182				27,537
Net loss per share
Basic		$	(0.57	)		$	(0.52	)		$	(1.14	)		$	(1.11	)
Diluted		$	(0.57	)		$	(0.52	)		$	(1.14	)		$	(1.11	)

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

		*Three months ended June 30,*								*Six months ended June 30,*
		*2023*				*2022*				*2023*				*2022*
Employee stock options			—			—					—				—
Restricted stock units			498			—					473				—
Shares for convertible senior notes			4,587				4,587				4,587				4,587
Total antidilutive shares			5,085				4,587				5,060				4,587