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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (UNAUDITED) [Abstract]        
Product revenues $ 935,000 $ 1,408,000 $ 1,965,000 $ 2,800,000
Cost of product revenues 766,000 608,000 1,187,000 1,365,000
Gross profit 169,000 800,000 778,000 1,435,000
Development revenues:        
Development, related party 0 0 0 638,000
Development revenue 0 0 0 1,179,000
Government contracts and other 356,000 859,000 759,000 1,408,000
Total development revenues 356,000 859,000 759,000 3,225,000
Operating expenses:        
Research and development 4,674,000 4,150,000 8,966,000 7,869,000
Sales and marketing 1,934,000 2,410,000 3,861,000 4,667,000
General and administrative 4,602,000 4,046,000 8,942,000 7,892,000
Change in fair value of warrant liability 0 (84,000) 0 (418,000)
Change in fair value of option liability 0 (2,500,000) 0 (2,250,000)
Total operating expenses 11,210,000 8,022,000 21,769,000 17,760,000
Operating loss (10,685,000) (6,363,000) (20,232,000) (13,100,000)
Other income (expense):        
Loss on asset disposal (1,000) (257,000) (1,000) (257,000)
Gain on previously held equity interest in Joint Venture 0 4,892,000 0 4,892,000
Loss on debt extinguishment 0 (708,000) 0 (708,000)
Interest income 1,000 1,000 3,000 1,000
Interest expense (1,085,000) (652,000) (2,026,000) (1,361,000)
Other income (expense), net (58,000) (124,000) 28,000 (296,000)
Equity loss from investment in joint venture 0 0 0 (48,000)
Total other income (expense) (1,143,000) 3,152,000 (1,996,000) 2,223,000
Net loss (11,828,000) (3,211,000) (22,228,000) (10,877,000)
Other comprehensive income (loss) foreign currency translation adjustments 193,000 76,000 143,000 (34,000)
Net comprehensive loss $ (11,635,000) $ (3,135,000) $ (22,085,000) $ (10,911,000)
Basic and diluted net loss per common share (in dollars per share) $ (0.15) $ (0.05) $ (0.29) $ (0.16)
Basic and diluted weighted average common shares (in shares) 76,682,643 67,200,588 75,399,647 67,096,348