Condensed Consolidated Statements of Operations (Unaudited) (USD $)
3 Months Ended 9 Months Ended
Sep. 29, 2012
Oct. 01, 2011
Sep. 29, 2012
Oct. 01, 2011
Net revenues:        
Net commercial product revenues $ 1,301,000 $ 470,000 $ 2,174,000 $ 3,174,000
Government and other contract revenues 30,000 9,000 152,000 41,000
Total net revenues 1,331,000 479,000 2,326,000 3,215,000
Costs and expenses:        
Cost of commercial product revenues 1,021,000 1,093,000 2,943,000 4,027,000
Cost of government and other contract revenue 18,000 9,000 113,000 39,000
Research and development 1,315,000 1,065,000 3,790,000 4,414,000
Selling, general and administrative 1,247,000 1,658,000 4,199,000 4,993,000
Total costs and expenses 3,601,000 3,825,000 11,045,000 13,473,000
Loss from operations (2,270,000) (3,346,000) (8,719,000) (10,258,000)
Other Income and Expense:        
Other Income 7,000   44,000  
Interest income 1,000 16,000 6,000 20,000
Interest expense   1,000   (13,000)
Net loss $ (2,262,000) $ (3,329,000) $ (8,669,000) $ (10,251,000)
Basic and diluted loss per common share $ (0.06) $ (0.10) $ (0.23) $ (0.33)
Weighted average number of common shares outstanding 39,511,809 32,224,901 38,331,381 31,538,181