CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net revenues:
Product	$ 22,673	$ 22,340	$ 68,846	$ 62,652
Service	14,697	16,720	46,031	48,113
Contract	18,168	21,992	66,851	67,965
Revenue, net	55,538	61,052	181,728	178,730
Costs of sales:
Product	15,492	14,681	46,806	39,699
Service	11,042	11,775	33,498	33,813
Contract	16,649	20,584	62,440	64,151
Cost of goods and services sold	43,183	47,040	142,744	137,663
Gross margin	12,355	14,012	38,984	41,067
Operating expenses:
Selling, general and administrative	8,616	9,410	28,315	28,844
Research and development	3,730	3,309	11,576	9,947
Amortization of identifiable intangible assets	0	138	0	441
Operating expenses	12,346	12,857	39,891	39,232
Operating income (loss) from continuing operations	9	1,155	(907)	1,835
Other income (expense), net	152	233	373	440
Interest expense	(16)	(22)	(42)	(64)
Income (loss) from continuing operations before provision for income taxes	145	1,366	(576)	2,211
Provision (benefit) for income taxes	(300)	62	(900)	383
Income from continuing operations	445	1,304	324	1,828
Discontinued operations -
Income (loss) on discontinued operations (net of tax)	(5)	50	(211)	1,470
Net income	$ 440	$ 1,354	$ 113	$ 3,298
Basic earnings (loss) per share:
Income from continuing operations (in dollars per share)	$ 0.03	$ 0.09	$ 0.02	$ 0.12
Income (loss) from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ (0.01)	$ 0.10
Net income (in dollars per share)	$ 0.03	$ 0.09	$ 0.01	$ 0.22
Diluted earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ 0.03	$ 0.09	$ 0.02	$ 0.12
Income (loss) from discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ (0.01)	$ 0.10
Net income (loss) (in dollars per share)	$ 0.03	$ 0.09	$ 0.01	$ 0.22
Weighted average shares outstanding
Basic (in shares)	15,405	15,131	15,228	15,105
Diluted (in shares)	15,446	15,207	15,253	15,179