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Condensed Consolidated Statements of Operations - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Income Statement [Abstract]    
Product revenue, net $ 34,344 $ 25,307
Licensing revenue 293 236
Total revenue, net 34,637 25,543
Less: Cost of goods sold 8,198 6,896
Gross margin 26,439 18,647
Operating expenses:    
Selling, general and administrative 34,171 28,020
Research and development 10,823 13,730
Total operating expenses 44,994 41,750
Operating loss (18,555) (23,103)
Loss on change in fair value of derivative liabilities   (1,250)
Interest expense, net (2,381) (5,586)
Other expense, net (5) (121)
Loss from operations before taxes (20,941) (30,060)
Benefit from income taxes   289
Net loss $ (20,941) $ (29,771)
Loss per share:    
Basic $ (0.08) $ (0.16)
Diluted $ (0.08) $ (0.16)
Weighted average shares:    
Basic 270,163 184,052
Diluted 270,163 184,052