CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenues:
Total revenues	$ 32,066	$ 28,456
Costs of goods sold and services:
Total costs of goods sold and services	12,440	11,530
Gross profit	19,626	16,926
Operating expenses:
Research and development	6,675	4,720
Selling, general and administrative	25,993	20,850
Other lease costs	924	776
Total operating expenses	33,592	26,346
Loss from operations	(13,966)	(9,420)
Interest income (expense), net	3,948	3,449
Other income (expense), net	206	8
Loss before income taxes	(9,812)	(5,963)
Income tax (expense) benefit	(260)	(140)
Net loss	$ (10,072)	$ (6,103)
Net loss per common share, basic (in dollars per share)	$ (0.26)	$ (0.16)
Net loss per common share, diluted (in dollars per share)	$ (0.26)	$ (0.16)
Weighted-average common shares outstanding, basic (in shares)	38,126	37,327
Weighted-average common shares outstanding, diluted (in shares)	38,126	37,327
Product revenue
Revenues:
Total revenues	$ 19,670	$ 19,287
Costs of goods sold and services:
Total costs of goods sold and services	7,145	7,033
Service revenue
Revenues:
Total revenues	11,967	8,579
Service and other revenue.
Costs of goods sold and services:
Total costs of goods sold and services	5,295	4,497
Collaboration and license revenue
Revenues:
Total revenues	155	368
Grant revenue
Revenues:
Total revenues	$ 274	$ 222