Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Revenues	$ 16,443	$ 12,629	$ 43,743	$ 38,883
Cost of revenues	3,692	1,326	8,595	3,767
Gross profit	12,751	11,303	35,148	35,116
Operating expenses:
Selling and marketing	5,046	2,655	14,131	8,055
Research and development	8,159	5,455	21,315	13,787
General and administrative	5,143	2,997	13,746	9,741
Change in fair value of contingent consideration	12,864		12,864
Total operating expenses	31,212	11,107	62,056	31,583
Operating (loss) income	(18,461)	196	(26,908)	3,533
Other income (expense):
Interest income, net	1	7	25	94
Other (expense) income	(2)	3	7	3
(Loss) income before provision for income taxes	(18,462)	206	(26,876)	3,630
Provision for income tax expense	145	45	159	45
Net (loss) income	$ (18,607)	$ 161	$ (27,035)	$ 3,585
(Loss) earnings per share:
Basic	$ (0.34)	$ 0.00	$ (0.54)	$ 0.09
Diluted	$ (0.34)	$ 0.00	$ (0.54)	$ 0.08
Weighted average shares outstanding:
Basic	53,939	41,351	50,147	40,656
Diluted	53,939	43,026	50,147	42,577