Condensed Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Products	$ 6,912,000	$ 2,542,000	$ 14,675,000	$ 6,394,000
Services	4,372,000	3,948,000	12,776,000	12,233,000
Revenue, Net, Total	11,284,000	6,490,000	27,451,000	18,627,000
Cost of revenue:
Cost of products	3,833,000	1,507,000	8,359,000	3,347,000
Cost of services	1,529,000	1,595,000	4,531,000	4,891,000
Cost of Goods and Services Sold, Total	5,362,000	3,102,000	12,890,000	8,238,000
Gross profit	5,922,000	3,388,000	14,561,000	10,389,000
Selling, general and administrative expenses	5,669,000	4,424,000	16,490,000	17,587,000
Research and development expenses	827,000	1,089,000	2,603,000	3,362,000
Loss from operations	(574,000)	(2,125,000)	(4,532,000)	(10,560,000)
Interest income	60,000	179,000	160,000	575,000
Interest expense	0	(1,000)	0	(56,000)
Other income, net	300,000	89,000	350,000	94,000
Net loss	$ (214,000)	$ (1,858,000)	$ (4,022,000)	$ (9,947,000)
Net loss per share - basic and diluted (in dollars per share)	$ (0.02)	$ (0.17)	$ (0.37)	$ (0.89)
Weighted average common shares outstanding - basic and diluted (in shares)	11,173,000	11,138,000	10,969,000	11,170,000