CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues, net:
Revenue	$ 355,795	$ 282,876	$ 213,786
Costs of sales:
Costs of sales	266,502	220,755	174,461
Gross margin	89,293	62,121	39,325
Operating expenses:
Selling, general and administrative	101,219	83,998	46,196
Research and development	48,643	34,579	19,252
Amortization of identifiable intangible assets	1,863	1,825	1,163
Adjustment to contingent consideration liability	(4,400)	0	(3,340)
Gain on insurance proceeds	0	(4,400)	0
Total operating expenses	147,325	116,002	63,271
Operating loss	(58,032)	(53,881)	(23,946)
Other (expense) income, net	(1,224)	(1,279)	808
Loss on extinguishment of debt	0	(11,916)	(8,123)
Interest expense, net	(8,811)	(18,147)	(8,287)
Loss before benefit from income taxes	(68,067)	(85,223)	(39,548)
(Provision for) benefit from income taxes	(1,252)	9,424	2,986
Net loss	$ (69,319)	$ (75,799)	$ (36,562)
Net loss per share, basic (in dollars per share)	$ (2.55)	$ (3.02)	$ (1.92)
Net loss per share, diluted (in dollars per share)	$ (2.55)	$ (3.02)	$ (1.92)
Weighted average shares outstanding, basic (in shares)	27,152	25,088	19,014
Weighted average shares outstanding, diluted (in shares)	27,152	25,088	19,014
Hardware
Revenues, net:
Revenue	$ 114,410	$ 105,014	$ 73,228
Costs of sales:
Costs of sales	92,224	80,841	58,887
Subscription service
Revenues, net:
Revenue	97,499	62,649	31,370
Costs of sales:
Costs of sales	47,424	38,651	20,912
Professional service
Revenues, net:
Revenue	50,438	42,688	37,914
Costs of sales:
Costs of sales	40,982	34,575	29,021
Contract
Revenues, net:
Revenue	93,448	72,525	71,274
Costs of sales:
Costs of sales	$ 85,872	$ 66,688	$ 65,641