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Discontinued Operations, Assets Held for Sale - Significant Operating Non-cash and Capital Expenditures (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Impairment of assets held for sale     $ 8,071 $ 0  
Depreciation and amortization expense     304 340  
Non-cash stock-based compensation     1,334 3,878  
Purchases of property and equipment     (81) (48)  
Commercial Business Segment [Member]          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Impairment of assets held for sale $ 8,071 $ 0 8,071 0 $ 0
Depreciation and amortization expense     858 319  
Allocated share based compensation expense     788    
Non-cash stock-based compensation       557  
Purchases of property and equipment     (34) 0  
Cash paid for acquisition of Zuplenz rights     $ (500) $ (3,056)