CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue	$ 14,047	$ 12,094	$ 24,038	$ 21,581
Cost of revenue	6,629	6,300	11,617	11,403
Gross profit	7,418	5,794	12,421	10,178
Operating expenses:
Research and development	6,381	5,525	12,171	10,923
Selling, general and administrative	14,597	11,208	26,498	23,211
Total operating expenses	20,978	16,733	38,669	34,134
Loss from operations	(13,560)	(10,939)	(26,248)	(23,956)
Other income, net:
Interest income	1,133	1,689	2,862	2,706
Interest expense				(551)
Other (expense) income, net	(190)	(167)	(218)	(200)
Total other income, net	943	1,522	2,644	1,955
Loss from operations before income taxes	(12,617)	(9,417)	(23,604)	(22,001)
Benefit for income taxes	69	71	139	122
Net loss	$ (12,548)	$ (9,346)	$ (23,465)	$ (21,879)
Net loss per share, basic	$ (0.37)	$ (0.29)	$ (0.70)	$ (0.68)
Net loss per share, diluted	$ (0.37)	$ (0.29)	$ (0.70)	$ (0.68)
Weighted average common shares outstanding, basic	34,061,933	32,199,156	33,386,413	32,083,122
Weighted average common shares outstanding, diluted	34,061,933	32,199,156	33,386,413	32,083,122
Product revenue
Revenue	$ 10,266	$ 9,595	$ 17,499	$ 16,617
Cost of revenue	4,732	4,800	7,942	8,586
Service revenue
Revenue	3,681	2,354	6,439	4,594
Cost of revenue	1,823	1,448	3,601	2,718
Contract revenue
Revenue	100	145	100	370
Cost of revenue	$ 74	$ 52	$ 74	$ 99