CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Net revenues:
Product	$ 24,856	$ 27,850	$ 71,730	$ 72,185
Service	19,152	17,268	53,330	53,369
Contract	15,756	16,053	48,836	49,950
Revenue, Net	59,764	61,171	173,896	175,504
Costs of sales:
Product	16,196	17,865	45,298	47,256
Service	13,650	12,192	45,383	36,141
Contract	14,667	15,041	45,812	46,854
Cost of Goods And Services Sold	44,513	45,098	136,493	130,251
Gross margin	15,251	16,073	37,403	45,253
Operating expenses:
Selling, general and administrative	9,239	9,995	29,304	29,316
Research and development	3,730	4,826	11,590	12,592
Impairment of goodwill and intangible assets	0	0	20,843	0
Amortization of identifiable intangible assets	257	234	667	703
Operating Expenses	13,226	15,055	62,404	42,611
Operating income (loss)	2,025	1,018	(25,001)	2,642
Other income (expense), net	23	97	(106)	516
Interest expense	(48)	(157)	(163)	(299)
Income (loss) before provision for income taxes	2,000	958	(25,270)	2,859
(Provision) benefit for income taxes	(798)	(420)	9,028	(890)
Net income (loss)	$ 1,202	$ 538	$ (16,242)	$ 1,969
Earnings (loss) per share
Basic	$ 0.08	$ 0.04	$ (1.08)	$ 0.13
Diluted	$ 0.08	$ 0.04	$ (1.08)	$ 0.13
Weighted average shares outstanding
Basic	15,031	14,879	14,984	14,794
Diluted	15,118	15,048	14,984	15,009