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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]        
Product revenues $ 1,947,000 $ 2,411,000 $ 3,427,000 $ 3,773,000
Cost of product revenues 1,032,000 1,109,000 1,885,000 1,950,000
Gross profit 915,000 1,302,000 1,542,000 1,823,000
Development revenues:        
Development, related party 2,413,000 0 2,413,000 1,231,000
Research grant and other 16,000 11,000 19,000 15,000
Total development revenues 2,429,000 11,000 2,432,000 1,246,000
Operating expenses:        
Research and development 3,224,000 3,071,000 6,060,000 6,118,000
Sales and marketing 2,581,000 3,716,000 4,956,000 6,942,000
General and administrative 3,788,000 4,147,000 7,712,000 7,692,000
Change in fair value of warrant liability 251,000 (5,649,000) 381,000 (2,178,000)
Change in fair value of option liability 460,000 400,000 190,000 110,000
Total operating expenses 10,304,000 5,685,000 19,299,000 18,684,000
Operating loss (6,960,000) (4,372,000) (15,325,000) (15,615,000)
Other income (expense):        
Interest income 1,000 1,000 2,000 4,000
Interest expense (860,000) (696,000) (1,726,000) (1,434,000)
Other income (expense), net (27,000) (15,000) (73,000) (62,000)
Equity loss from investment in joint venture (37,000) (56,000) (86,000) (102,000)
Total other income (expense) (923,000) (766,000) (1,883,000) (1,594,000)
Net loss $ (7,883,000) $ (5,138,000) $ (17,208,000) $ (17,209,000)
Basic and diluted net loss per common share (in dollars per share) $ (0.13) $ (0.10) $ (0.30) $ (0.33)
Basic and diluted weighted average common shares (in shares) 58,676,092 52,411,642 58,080,541 52,204,348