CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net revenues:
Product	$ 22,953	$ 22,257	$ 41,545	$ 46,173
Service	14,920	15,314	29,170	31,334
Contract	19,529	21,945	43,228	48,683
Revenue, net	57,402	59,516	113,943	126,190
Costs of sales:
Product	15,815	14,841	28,718	31,314
Service	10,831	10,904	20,384	22,456
Contract	18,495	20,312	40,567	45,791
Cost of goods and services sold	45,141	46,057	89,669	99,561
Gross margin	12,261	13,459	24,274	26,629
Operating expenses:
Selling, general and administrative	9,513	9,494	18,776	19,699
Research and development	3,761	3,706	7,625	7,846
Operating expenses	13,274	13,200	26,401	27,545
Operating loss (loss) from continuing operations	(1,013)	259	(2,127)	(916)
Other income net	406	255	328	221
Interest expense	(25)	(13)	(42)	(26)
Income (loss) from continuing operations before benefit for income taxes	(632)	501	(1,841)	(721)
(Provision) benefit for income taxes	113	(253)	333	600
Income (loss) from continuing operations	(519)	248	(1,508)	(121)
Discontinued operations -
Loss on discontinued operations (net of tax)	0	(191)	0	(206)
Net Income (loss)	$ (519)	$ 57	$ (1,508)	$ (327)
Basic Earnings per Share:
Income (loss) from continuing operations (in dollars per share)	$ (0.03)	$ 0.02	$ (0.10)	$ (0.01)
Loss from discontinued operations (in dollars per share)	$ 0	$ (0.01)	$ 0	$ (0.01)
Net income (loss) (in dollars per share)	$ (0.03)	$ 0	$ (0.10)	$ (0.02)
Diluted Earnings per Share:
Income (loss) from continuing operations (in dollars per share)	$ (0.03)	$ 0.02	$ (0.10)	$ (0.01)
Loss from discontinued operations (in dollars per share)	$ 0	$ (0.01)	$ 0	$ (0.01)
Net income (loss) (in dollars per share)	$ (0.03)	$ 0	$ (0.10)	$ (0.02)
Weighted average shares outstanding
Basic (in shares)	15,612	15,171	15,473	15,162
Diluted (in shares)	15,612	15,340	15,473	15,162