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
Consolidated Statements Of Operations [Abstract]
Revenues	$ 41,644,000	$ 61,087,000
Cost of revenues	23,465,000	33,034,000
Gross margin	18,179,000	28,053,000
Research and development expenses	7,748,000	7,781,000
Selling, general and administrative expenses	12,802,000	14,476,000
Restructuring and severance costs	740,000
Amortization of intangibles		108,000
Income (loss) from operations	(3,111,000)	5,688,000
Interest income and other	(24,000)	39,000
Income (loss) before income taxes	(3,135,000)	5,727,000
Income tax provision	3,576,000	1,370,000
Net income (loss)	$ (6,711,000)	$ 4,357,000
Net income (loss) per share - Basic	$ (0.97)	$ 0.63
Net income (loss) per share - Diluted	$ (0.97)	$ 0.63
Weighted average shares outstanding - Basic	6,946	6,906
Weighted average shares outstanding - Diluted	6,946	6,952