Consolidated Statements of Operations (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Product	$ 10,609,000	$ 19,524,000	$ 16,815,000
Service	3,246,000	2,469,000	1,392,000
Total revenues	13,855,000	21,993,000	18,207,000
Cost of sales:
Product	5,382,000	9,907,000	8,340,000
Service	2,324,000	1,555,000	680,000
Total cost of sales	7,706,000	11,462,000	9,020,000
Gross margin	6,149,000	10,531,000	9,187,000
Research and development	3,290,000	3,814,000	6,572,000
Sales and marketing	3,358,000	3,498,000	4,512,000
General and administrative	3,034,000	3,529,000	3,843,000
Restructuring charge	253,000		3,339,000
Total operating expenses	9,935,000	10,841,000	18,266,000
Loss from operations	(3,786,000)	(310,000)	(9,079,000)
Interest income, net	25,000	22,000	102,000
Other loss, net	(12,000)		(79,000)
Loss before income tax	(3,773,000)	(288,000)	(9,056,000)
Income tax provision (benefit)	12,000	217,000	(637,000)
Net loss	$ (3,785,000)	$ (505,000)	$ (8,419,000)
Net loss per share:
Basic (in Dollars per share)	$ (0.54)	$ (0.07)	$ (1.23)
Diluted (in Dollars per share)	$ (0.54)	$ (0.07)	$ (1.23)
Weighted average common shares (in Shares)	6,975	6,857	6,839
Weighted average common and dilutive shares (in Shares)	6,975	6,857	6,839