CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenues, net:
Total revenues, net	$ 100,437	$ 80,285
Costs of sales:
Total cost of sales	77,244	59,672
Gross margin	23,193	20,613
Operating expenses:
Selling, general and administrative	27,478	22,368
Research and development	14,315	10,841
Amortization of identifiable intangible assets	464	213
Adjustment to contingent consideration liability	(5,200)	0
Total operating expenses	37,057	33,422
Operating loss	(13,864)	(12,809)
Other expense, net	(59)	(368)
Interest expense, net	(1,667)	(2,463)
Loss before provision for income taxes	(15,590)	(15,640)
Provision for income taxes	(315)	(10)
Net loss	$ (15,905)	$ (15,650)
Net loss per share, basic (in dollars per share)	$ (0.58)	$ (0.58)
Net loss per share, diluted (in dollars per share)	$ (0.58)	$ (0.58)
Weighted average shares outstanding, basic (in shares)	27,344	26,970
Weighted average shares outstanding, diluted (in shares)	27,344	26,970
Hardware
Revenues, net:
Total revenues, net	$ 26,777	$ 25,073
Costs of sales:
Total cost of sales	22,381	19,997
Subscription service
Revenues, net:
Total revenues, net	27,965	21,285
Costs of sales:
Total cost of sales	13,925	10,616
Professional service
Revenues, net:
Total revenues, net	13,842	12,488
Costs of sales:
Total cost of sales	11,366	9,180
Contract
Revenues, net:
Total revenues, net	31,853	21,439
Costs of sales:
Total cost of sales	$ 29,572	$ 19,879