Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Net revenues:
Net commercial product revenues	$ 470,000	$ 1,830,000	$ 3,174,000	$ 5,901,000
Government and other contract revenues	9,000	144,000	41,000	1,857,000
Total net revenues	479,000	1,974,000	3,215,000	7,758,000
Costs and expenses:
Cost of commercial product revenues	1,093,000	2,110,000	4,027,000	6,464,000
Cost of government and other contract revenue	9,000	86,000	39,000	1,095,000
Research and development	1,065,000	1,507,000	4,414,000	3,998,000
Selling, general and administrative	1,658,000	1,622,000	4,993,000	5,338,000
Total costs and expenses	3,825,000	5,325,000	13,473,000	16,895,000
Loss from operations	(3,346,000)	(3,351,000)	(10,258,000)	(9,137,000)
Other Income and Expense:
Adjustments to fair value of derivatives		2,000		171,000
Interest income	16,000	2,000	20,000	4,000
Interest expense	1,000	(7,000)	(13,000)	(21,000)
Net loss	$ (3,329,000)	$ (3,354,000)	$ (10,251,000)	$ (8,983,000)
Basic and diluted loss per common share	$ (0.10)	$ (0.14)	$ (0.33)	$ (0.40)
Weighted average number of common shares outstanding	32,224,901	23,335,955	31,538,181	22,334,644