Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Net revenues:
Net commercial product revenues	$ 1,101,000	$ 1,738,000	$ 2,704,000	$ 4,072,000
Government and other contract revenues	15,000	631,000	32,000	1,712,000
Total net revenues	1,116,000	2,369,000	2,736,000	5,784,000
Costs and expenses:
Cost of commercial product revenues	1,265,000	1,968,000	2,934,000	4,354,000
Cost of government and other contract revenue	15,000	375,000	30,000	1,009,000
Research and development	1,361,000	1,342,000	3,349,000	2,491,000
Selling, general and administrative	1,679,000	1,932,000	3,335,000	3,715,000
Total costs and expenses	4,320,000	5,617,000	9,648,000	11,569,000
Loss from operations	(3,204,000)	(3,248,000)	(6,912,000)	(5,785,000)
Other Income and Expense:
Adjustments to fair value of derivatives		127,000		168,000
Interest income	2,000	1,000	4,000	2,000
Interest expense	(7,000)	(7,000)	(14,000)	(14,000)
Net loss	$ (3,209,000)	$ (3,127,000)	$ (6,922,000)	$ (5,629,000)
Basic and diluted loss per common share	$ (0.10)	$ (0.14)	$ (0.22)	$ (0.26)
Weighted average number of common shares outstanding	32,184,816	21,870,717	31,196,697	21,839,430