Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenues	$ 48,513	$ 58,422
Cost of revenues	14,210	12,698
Gross profit	34,303	45,724
Operating expenses:
Selling and marketing	12,887	11,581
Research and development	29,870	26,197
General and administrative	16,161	17,920
Change in fair value of contingent consideration	0	12,864
Amortization of intangible assets	6,312	8,100
Total operating expenses	65,230	76,662
Operating loss	(30,927)	(30,938)
Other income (expense):
Change in fair value of warrant and derivative liabilities	4,669	0
Interest (expense) income, net	(2,680)	34
Other (expense) income, net	(115)	76
Loss before provision for income taxes	(29,053)	(30,828)
Provision for income tax expense	226	215
Net loss	$ (29,279)	$ (31,043)
Loss per share:
Basic (in dollars per share)	$ (0.53)	$ (0.61)
Diluted (in dollars per share)	$ (0.53)	$ (0.61)
Weighted average shares outstanding:
Basic (in shares)	55,422	51,232
Diluted (in shares)	55,422	51,232