Sale of Sumavel DosePro Business - Additional Information (Details) (USD $)	3 Months Ended		9 Months Ended			0 Months Ended	3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	May 16, 2014 Notes Payable, Other Payables	May 16, 2014 Sumavel DosePro	Sep. 30, 2014 Sumavel DosePro	Sep. 30, 2014 Sumavel DosePro	May 16, 2014 Sumavel DosePro	Sep. 30, 2014 Sumavel DosePro Notes Payable, Other Payables	Sep. 30, 2014 Sumavel DosePro Notes Payable, Other Payables	May 16, 2014 Sumavel DosePro Notes Payable, Other Payables	May 16, 2014 Sumavel DosePro Purchasing Entity
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Business Combination, Contingent Consideration, Asset													$ 20,000,000
Proceeds from sale of business			89,624,000	0		85,000,000
Escrow Deposit									8,500,000
Revenue from finished goods inventory						4,624,000
Contingent consideration, additional cash payments													20,000,000
Cost of goods sold mark-up, in percent						2.50%
Face amount of debt					7,000,000							7,000,000
Transaction costs									660,000
Contract Receivable									9,100,000
Debt discount									4,748,000			4,748,000
Net gain on sale of business	0	0	79,980,000	0		79,980,000		79,980,000
Contract revenue	4,225,000	0	6,463,000	0			4,225,000	6,463,000
Deferred Revenue							8,863,000	8,863,000	9,108,000
Interest expense										$ 83,000	$ 123,000