CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net revenues:
Product	$ 20,706	$ 25,757	$ 90,594	$ 69,285
Service	13,317	12,620	42,694	36,128
Contract	14,915	23,115	43,776	64,042
Revenue, net	48,938	61,492	177,064	169,455
Costs of sales:
Product	15,861	18,433	67,822	51,012
Service	10,102	8,969	29,753	25,787
Contract	13,608	21,490	39,264	59,002
Cost of goods and services sold	39,571	48,892	136,839	135,801
Gross margin	9,367	12,600	40,225	33,654
Operating expenses:
Selling, general and administrative	9,054	8,672	27,581	23,271
Research and development	2,668	2,866	9,521	8,421
Amortization of identifiable intangible assets	241	241	724	724
Operating expenses	11,963	11,779	37,826	32,416
Operating (loss) income from continuing operations	(2,596)	821	2,399	1,238
Other expense, net	(70)	(38)	(264)	(318)
Interest expense, net	(39)	(12)	(84)	20
(Loss) income from continuing operations before provision for income taxes	(2,705)	771	2,051	940
Benefits (provision) for income taxes	1,188	(253)	(327)	(306)
(Loss) income from continuing operations	(1,517)	518	1,724	634
Discontinued operations
Income (loss) from discontinued operations (net of tax)	0	0	183	(26)
Net (loss) income	$ (1,517)	$ 518	$ 1,907	$ 608
Basic Earnings per Share:
(Loss) income from continuing operations (in dollars per share)	$ (0.10)	$ 0.03	$ 0.11	$ 0.04
(Loss) income from discontinuing operations (in dollars per share)	0	0	0.01	0
Net (loss) income (in dollars per share)	(0.10)	0.03	0.12	0.04
Diluted Earnings per Share:
(Loss) income from continuing operations (in dollars per share)	(0.10)	0.03	0.11	0.04
(Loss) income from discontinuing operations (in dollars per share)	0	0	0.01	0
Net (loss) income (in dollars per share)	$ (0.10)	$ 0.03	$ 0.12	$ 0.04
Weighted average shares outstanding (in shares)
Basic (in shares)	15,976	15,770	15,949	15,670
Diluted (in shares)	15,976	15,822	16,260	15,730