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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) (USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) [Abstract]    
Product revenues $ 1,392,000 $ 1,481,000
Cost of product revenues 756,000 853,000
Gross profit 636,000 628,000
Development revenues:    
Development, related party 638,000 0
Development revenue 1,179,000 0
Government contracts and other 549,000 3,000
Total development revenues 2,366,000 3,000
Operating expenses:    
Research and development 3,720,000 2,836,000
Sales and marketing 2,257,000 2,376,000
General and administrative 3,846,000 3,924,000
Change in fair value of warrant liability (334,000) 130,000
Change in fair value of option liability 250,000 (270,000)
Total operating expenses 9,739,000 8,996,000
Operating loss (6,737,000) (8,365,000)
Other income (expense):    
Interest income 0 2,000
Interest expense (709,000) (865,000)
Other expense, net (173,000) (47,000)
Equity loss from investment in joint venture (48,000) (50,000)
Total other expense (930,000) (960,000)
Net loss (7,667,000) (9,325,000)
Other comprehensive loss - foreign currency translation adjustments (110,000) 0
Comprehensive loss $ (7,777,000) $ (9,325,000)
Basic and diluted net loss per common share (in dollars per share) $ (0.11) $ (0.16)
Basic and diluted weighted average common shares (in shares) 66,990,950 57,484,990