CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net revenues:
Product	$ 25,757	$ 24,408	$ 69,285	$ 70,081
Service	12,620	11,611	36,128	34,687
Contract	23,115	22,041	64,042	67,438
Revenue, net	61,492	58,060	169,455	172,206
Costs of sales:
Product	18,433	17,454	51,012	50,238
Service	8,969	8,491	25,787	25,499
Contract	21,490	20,395	59,002	63,058
Cost of goods and services sold	48,892	46,340	135,801	138,795
Gross margin	12,600	11,720	33,654	33,411
Operating expenses:
Selling, general and administrative	8,672	6,808	23,271	20,313
Research and development	2,866	2,744	8,421	7,840
Amortization of identifiable intangible assets	241	248	724	746
Operating expenses	11,779	9,800	32,416	28,899
Operating income from continuing operations	821	1,920	1,238	4,512
Other (expense) income, net	(38)	128	(318)	(58)
Interest (expense) income, net	(12)	(81)	20	(252)
Income from continuing operations before provision for income taxes	771	1,967	940	4,202
Provision for income taxes	(253)	(670)	(306)	(1,470)
Income from continuing operations	518	1,297	634	2,732
Discontinued operations
Loss on discontinued operations (net of tax)	0	(2,786)	(26)	(4,505)
Net income (loss)	$ 518	$ (1,489)	$ 608	$ (1,773)
Basic Earnings per Share:
Income from continuing operations (in dollars per share)	$ 0.03	$ 0.08	$ 0.04	$ 0.18
Loss from discontinued operations (in dollars per share)	0	(0.18)	0	(0.29)
Net income (loss) (in dollars per share)	0.03	(0.10)	0.04	(0.11)
Diluted Earnings per Share:
Income from continuing operations (in dollars per share)	0.03	0.08	0.04	0.17
Loss from discontinued operations (in dollars per share)	0	(0.18)	0	(0.29)
Net income (loss) (in dollars per share)	$ 0.03	$ (0.10)	$ 0.04	$ (0.11)
Weighted average shares outstanding
Basic (in shares)	15,770	15,589	15,670	15,549
Diluted (in shares)	15,822	15,659	15,730	15,650