CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenue	$ 45,691	$ 44,247	$ 100,423	$ 88,929
Costs of sales:
Cost of sales	36,612	35,916	80,297	71,074
Gross margin	9,079	8,331	20,126	17,855
Operating expenses:
Selling, general and administrative	10,049	9,059	21,476	17,623
Research and development	4,538	2,725	9,403	5,786
Amortization of identifiable intangible assets	210	0	420	0
Operating expenses	14,797	11,784	31,299	23,409
Operating loss	(5,718)	(3,453)	(11,173)	(5,554)
Other expense, net	(139)	(374)	(764)	(804)
Interest expense, net	(2,111)	(1,244)	(4,083)	(1,390)
Loss on extinguishment of debt	0	0	(8,123)	0
Loss before benefit from (provision for) income taxes	(7,968)	(5,071)	(24,143)	(7,748)
(Provision for) benefit from income taxes	(1,008)	3,962	4,257	3,910
Net loss	$ (8,976)	$ (1,109)	$ (19,886)	$ (3,838)
Basic Earnings per Share:
Net loss (in dollars per share)	$ (0.49)	$ (0.07)	$ (1.10)	$ (0.24)
Diluted Earnings per Share:
Net loss (in dollars per share)	$ (0.49)	$ (0.07)	$ (1.10)	$ (0.24)
Weighted average shares outstanding:
Basic (in shares)	18,244	16,290	18,092	16,085
Diluted (in shares)	18,244	16,290	18,092	16,085
Product
Revenue	$ 12,333	$ 14,728	$ 30,967	$ 30,245
Costs of sales:
Cost of sales	9,982	11,412	24,887	22,653
Service
Revenue	15,300	13,534	34,075	27,577
Costs of sales:
Cost of sales	9,912	10,118	22,558	20,385
Contract
Revenue	18,058	15,985	35,381	31,107
Costs of sales:
Cost of sales	$ 16,718	$ 14,386	$ 32,852	$ 28,036