Discontinued Operations, Assets Held for Sale - Significant Operating Non-cash and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization expense	$ 73	$ 98
Non-cash stock-based compensation	656	371
Purchases of property and equipment	(6)	(18)
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
Depreciation and amortization expense	0	20
Allocated share based compensation expense	0
Non-cash stock-based compensation		256
Purchases of property and equipment	0	(34)
Cash paid for acquisition of Zuplenz rights	$ 0	$ (500)