Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue	$ 39,536	$ 31,694	$ 111,973	$ 97,769
Cost of revenue	16,513	14,351	47,164	45,487
Gross Profit	23,023	17,343	64,809	52,282
Operating expenses:
Research and development	7,673	5,217	21,327	15,799
Selling, general and administrative	17,500	15,903	53,664	44,884
Goodwill impairment	0	0	0	18,144
Change in fair value of contingent consideration	(3,450)	4,150	(21,920)	(16,176)
Total operating expenses	21,723	25,270	53,071	62,651
Income (loss) from operations	1,300	(7,927)	11,738	(10,369)
Interest and other expense, net	(48)	(228)	(141)	(118)
Income (loss) before income taxes	1,252	(8,155)	11,597	(10,487)
Provision for (benefit from) income taxes	694	(1,744)	1,670	(2,161)
Net income (loss)	$ 558	$ (6,411)	$ 9,927	$ (8,326)
Net income (loss) per share:
Basic (in dollars per share)	$ 0.04	$ (0.45)	$ 0.69	$ (0.59)
Diluted (in dollars per share)	$ 0.04	$ (0.45)	$ 0.68	$ (0.59)
Weighted average common shares outstanding:
Basic (in shares)	14,429	14,205	14,389	14,202
Diluted (in shares)	14,647	14,205	14,588	14,202
Net income (loss)	$ 558	$ (6,411)	$ 9,927	$ (8,326)
Foreign currency translation adjustment	(467)	522	(777)	602
Comprehensive income (loss)	$ 91	$ (5,889)	$ 9,150	$ (7,724)