CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Net revenues:
Product	$ 87,246	$ 90,847
Service	58,675	61,529
Contract	87,689	89,018
Revenue, net	233,610	241,394
Costs of sales:
Product	59,520	62,317
Service	40,421	43,659
Contract	82,347	82,583
Cost of goods and services sold	182,288	188,559
Gross margin	51,322	52,835
Operating expenses:
Selling, general and administrative	37,297	37,925
Research and development	15,965	15,567
Amortization of identifiable intangible assets	279	0
Operating expenses	53,541	53,492
Operating loss from continuing operations	(2,219)	(657)
Other income, net	304	506
Interest expense	(136)	(60)
Loss from continuing operations before provision for income taxes	(2,051)	(211)
(Provision) benefit for income taxes	(1,600)	780
Income (loss) from continuing operations	(3,651)	569
Discontinued operations
Loss on discontinued operations (net of tax)	0	(211)
Net income (loss)	$ (3,651)	$ 358
Basic Earnings per Share:
Income (loss) from continuing operations (in dollars per share)	$ (0.24)	$ 0.04
Loss from discontinued operations (in dollars per share)	$ 0	$ (0.01)
Net income (loss) (in dollars per share)	$ (0.24)	$ 0.02
Diluted Earnings per Share:
Income (loss) from continuing operations (in dollars per share)	$ (0.24)	$ 0.04
Loss from discontinued operations (in dollars per share)	$ 0	$ (0.01)
Net income (loss) (in dollars per share)	$ (0.24)	$ 0.02
Weighted average shares outstanding
Basic (in shares)	15,501	15,240
Diluted (in shares)	15,501	15,273