CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues, net:
Revenue	$ 77,860,000	$ 54,847,000	$ 201,277,000	$ 155,270,000
Costs of sales:
Cost of sales	59,646,000	43,176,000	157,760,000	123,473,000
Gross margin	18,214,000	11,671,000	43,517,000	31,797,000
Operating expenses:
Selling, general and administrative	21,662,000	10,512,000	59,145,000	31,988,000
Research and development	10,122,000	4,210,000	24,574,000	13,613,000
Amortization of identifiable intangible assets	539,000	257,000	1,303,000	677,000
Adjustment to contingent consideration liability	0	(2,310,000)	0	(2,310,000)
Gain on insurance proceeds	0	0	(4,400,000)	0
Operating expenses	32,323,000	12,669,000	80,622,000	43,968,000
Operating loss	(14,109,000)	(998,000)	(37,105,000)	(12,171,000)
Other expense, net	(539,000)	(486,000)	(931,000)	(1,250,000)
Interest expense, net	(5,406,000)	(2,235,000)	(12,503,000)	(6,318,000)
Loss on extinguishment of debt	(11,916,000)	0	(11,916,000)	(8,123,000)
Loss before benefit from income taxes	(31,970,000)	(3,719,000)	(62,455,000)	(27,862,000)
Benefit from income taxes	37,000	8,000	12,295,000	4,265,000
Net loss	$ (31,933,000)	$ (3,711,000)	$ (50,160,000)	$ (23,597,000)
Net loss per share, basic (in dollars per share)	$ (1.23)	$ (0.20)	$ (2.05)	$ (1.30)
Net loss per share, diluted (in dollars per share)	$ (1.23)	$ (0.20)	$ (2.05)	$ (1.30)
Weighted average shares outstanding, basic (in shares)	25,998	18,250	24,485	18,145
Weighted average shares outstanding, diluted (in shares)	25,998	18,250	24,485	18,145
Product
Revenues, net:
Revenue	$ 30,291,000	$ 20,470,000	$ 72,786,000	$ 51,437,000
Costs of sales:
Cost of sales	22,786,000	15,995,000	56,158,000	40,882,000
Service
Revenues, net:
Revenue	29,530,000	16,877,000	74,743,000	50,952,000
Costs of sales:
Cost of sales	20,792,000	11,252,000	52,427,000	33,810,000
Contract
Revenues, net:
Revenue	18,039,000	17,500,000	53,748,000	52,881,000
Costs of sales:
Cost of sales	$ 16,068,000	$ 15,929,000	$ 49,175,000	$ 48,781,000