Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2012	Apr. 02, 2011
Net revenues:
Commercial product revenues	$ 344,000	$ 1,603,000
Government and other contract revenues	55,000	17,000
Total net revenues	399,000	1,620,000
Costs and expenses:
Cost of commercial product revenues	844,000	1,669,000
Cost of government and other contract revenue	52,000	15,000
Research and development	1,161,000	1,988,000
Selling, general and administrative	1,348,000	1,656,000
Total costs and expenses	3,405,000	5,328,000
Loss from operations	(3,006,000)	(3,708,000)
Other Income and Expense
Other income	16,000
Interest income	2,000	2,000
Interest expense		(7,000)
Net loss	$ (2,988,000)	$ (3,713,000)
Basic and diluted loss per common share	$ (0.08)	$ (0.12)
Weighted average number of common shares outstanding	35,577,732	30,219,318