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Discontinued Operations, Assets Held for Sale - Significant Operating Non-cash and Capital Expenditures (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Depreciation and amortization expense     $ 777 $ 181
Non-cash stock-based compensation     1,278 759
Purchases of property and equipment     (6) (34)
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 $ 0 $ 0 0 0
Depreciation and amortization expense     0 20
Allocated share based compensation expense     0  
Non-cash stock-based compensation       512
Purchases of property and equipment     0 (34)
Cash paid for acquisition of Zuplenz rights     $ 0 $ (500)