CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues, net:
Revenue	$ 415,823	$ 355,795	$ 282,876
Costs of sales:
Costs of sales	317,513	266,502	220,755
Gross margin	98,310	89,293	62,121
Operating expenses:
Sales and marketing	38,513	34,900	24,166
General and administrative	68,992	66,319	59,832
Research and development	58,356	48,643	34,579
Amortization of identifiable intangible assets	1,858	1,863	1,825
Adjustment to contingent consideration liability	(9,200)	(4,400)	0
Gain on insurance proceeds	(500)	0	(4,400)
Total operating expenses	158,019	147,325	116,002
Operating loss	(59,709)	(58,032)	(53,881)
Other expense, net	(489)	(1,224)	(1,279)
Loss on extinguishment of debt	(635)	0	(11,916)
Interest expense, net	(6,931)	(8,811)	(18,147)
Loss before (provision for) benefit from income taxes	(67,764)	(68,067)	(85,223)
(Provision for) benefit from income taxes	(1,988)	(1,252)	9,424
Net loss	$ (69,752)	$ (69,319)	$ (75,799)
Net loss per share, basic (in dollars per share)	$ (2.53)	$ (2.55)	$ (3.02)
Net loss per share, diluted (in dollars per share)	$ (2.53)	$ (2.55)	$ (3.02)
Weighted average shares outstanding, basic (in shares)	27,552	27,152	25,088
Weighted average shares outstanding, diluted (in shares)	27,552	27,152	25,088
Hardware
Revenues, net:
Revenue	$ 103,391	$ 114,410	$ 105,014
Costs of sales:
Costs of sales	80,319	92,224	80,841
Subscription service
Revenues, net:
Revenue	122,597	97,499	62,649
Costs of sales:
Costs of sales	63,735	47,424	38,651
Professional service
Revenues, net:
Revenue	50,726	50,438	42,688
Costs of sales:
Costs of sales	43,214	40,982	34,575
Contract
Revenues, net:
Revenue	139,109	93,448	72,525
Costs of sales:
Costs of sales	$ 130,245	$ 85,872	$ 66,688