Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenue	$ 46,852	$ 42,206
Cost of revenue	20,829	18,973
Gross profit	26,023	23,233
Operating expenses:
Research and development	17,526	13,067
Selling, general and administrative	43,879	32,235
Total operating expenses	61,405	45,302
Loss from operations	(35,382)	(22,069)
Other income (expense):
Interest income	2,031	548
Interest expense	(129)	(486)
Other income, net	(83)	(162)
Total other income (expense), net	1,819	(100)
Net loss	$ (33,563)	$ (22,169)
Net loss per share, basic	$ (1.07)	$ (0.79)
Net loss per share, diluted	$ (1.07)	$ (0.79)
Weighted average common shares outstanding, basic	31,492,531	27,957,904
Weighted average common shares outstanding, diluted	31,492,531	27,957,904
Product and service revenue
Revenue	$ 44,475	$ 41,108
Cost of revenue	20,430	18,654
License and contract revenue
Revenue	2,377	1,098
Cost of revenue	$ 399	$ 319