CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net revenues:
Product	$ 23,916	$ 20,170
Service	16,020	15,379
Contract	26,738	20,044
Revenue, net	66,674	55,593
Costs of sales:
Product	16,473	10,977
Service	11,552	10,565
Contract	25,479	18,983
Cost of goods and services sold	53,504	40,525
Gross margin	13,170	15,068
Operating expenses:
Selling, general and administrative	10,205	10,143
Research and development	4,140	3,549
Amortization of identifiable intangible assets	0	153
Operating expenses	14,345	13,845
Operating income (loss) from continuing operations	(1,175)	1,223
Other income, net	(34)	573
Interest expense	(13)	(21)
Income (loss) from continuing operations before provision for income taxes	(1,222)	1,775
Benefit (provision) for income taxes	853	(740)
Income (loss) from continuing operations	(369)	1,035
Discontinued operations -
Income (loss) on discontinued operations (net of tax)	(15)	1,430
Net income (loss)	$ (384)	$ 2,465
Basic earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ (0.02)	$ 0.07
Income (loss) from discontinued operations (in dollars per share)	$ 0	$ 0.09
Net income (loss) (in dollars per share)	$ (0.03)	$ 0.16
Diluted earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ (0.02)	$ 0.07
Income (loss) from discontinued operations (in dollars per share)	$ 0	$ 0.09
Net income (loss) (in dollars per share)	$ (0.03)	$ 0.16
Weighted average shares outstanding
Basic (in shares)	15,154	15,083
Diluted (in shares)	15,154	15,162