CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenues:
Total revenues	$ 31,029	$ 23,500	$ 59,485	$ 53,052
Costs of goods sold and services:
Total costs of goods sold and services	11,891	14,789	23,421	29,782
Gross profit	19,138	8,711	36,064	23,270
Operating expenses:
Research and development	5,946	6,625	10,666	13,659
Selling, general, and administrative	21,591	27,045	42,474	52,757
Other lease costs	1,162		1,938
Restructuring			(33)
Total operating expenses	28,699	33,670	55,045	66,416
Loss from operations	(9,561)	(24,959)	(18,981)	(43,146)
Interest income, net	3,886	552	7,335	604
Other expense, net	(154)	(358)	(146)	(575)
Loss before income taxes	(5,829)	(24,765)	(11,792)	(43,117)
Income tax (expense) benefit	(235)	(137)	(375)	62
Net loss	$ (6,064)	$ (24,902)	$ (12,167)	$ (43,055)
Net loss per common share, basic (in dollars per share)	$ (0.16)	$ (0.67)	$ (0.33)	$ (1.17)
Net loss per common share, diluted (in dollars per share)	$ (0.16)	$ (0.67)	$ (0.33)	$ (1.17)
Weighted-average common shares outstanding, basic (in shares)	37,494	36,922	37,411	36,887
Weighted-average common shares outstanding, diluted (in shares)	37,494	36,922	37,411	36,887
Product revenue
Revenues:
Total revenues	$ 19,692	$ 14,785	$ 38,979	$ 35,441
Costs of goods sold and services:
Total costs of goods sold and services	7,236	9,921	14,269	20,667
Service revenue
Revenues:
Total revenues	10,552	8,548	19,131	17,358
Service revenue.
Costs of goods sold and services:
Total costs of goods sold and services	4,655	4,868	9,152	9,115
Collaboration and license revenue
Revenues:
Total revenues	629	92	997	178
Grant revenue
Revenues:
Total revenues	$ 156	$ 75	$ 378	$ 75