Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Total revenue	$ 23,500	$ 25,371	$ 53,052	$ 52,580
Costs of goods sold:
Total costs of goods sold and services	14,789	11,497	29,782	22,357
Gross profit	8,711	13,874	23,270	30,223
Operating expenses:
Research and development	6,625	6,754	13,659	13,437
Selling, general and administrative	27,045	20,788	52,757	40,243
Total operating expenses	33,670	27,542	66,416	53,680
Loss from operations	(24,959)	(13,668)	(43,146)	(23,457)
Interest income (expense), net	552	(165)	604	(328)
Other (expense) income, net	(358)	1,977	(575)	1,783
Loss before income taxes	(24,765)	(11,856)	(43,117)	(22,002)
Income tax provision (benefit)	137	41	(62)	(1)
Net loss	$ (24,902)	$ (11,897)	$ (43,055)	$ (22,001)
Net loss per share, basic (in dollars per share)	$ (0.67)	$ (0.33)	$ (1.17)	$ (0.62)
Net loss per share, diluted (in dollars per share)	$ (0.67)	$ (0.33)	$ (1.17)	$ (0.62)
Weighted-average common shares outstanding, basic (in shares)	36,922,468	36,347,365	36,886,879	35,396,431
Weighted-average common shares outstanding, diluted (in shares)	36,922,468	36,347,365	36,886,879	35,396,431
Product revenue
Total revenue	$ 14,785	$ 18,676	$ 35,441	$ 36,924
Costs of goods sold:
Total costs of goods sold and services	9,921	8,114	20,667	15,594
Service and other revenue
Total revenue	8,548	5,648	17,358	12,057
Costs of goods sold:
Total costs of goods sold and services	4,868	3,383	9,115	6,763
Collaboration and license revenue
Total revenue	92	105	178	366
Grant revenue
Total revenue	$ 75	$ 942	$ 75	$ 3,233