Contract Manufacturing Agreement with Endo (Details) - USD ($) $ in Thousands		1 Months Ended		3 Months Ended				9 Months Ended
	Jun. 17, 2016	Sep. 30, 2017	May 31, 2014	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2017	Sep. 30, 2016
Supply Commitment [Line Items]
Asset impairment charges								$ 1,116	$ 0
Inventory charge recorded					$ 2,200			2,232	$ 0
Sumavel DosePro
Supply Commitment [Line Items]
Asset impairment charges						$ 800	$ 6,400
Promissory note | Working Capital Advance
Supply Commitment [Line Items]
Working capital advance			$ 7,000
Endo Ventures Supply Agreement
Supply Commitment [Line Items]
Initial term of supply agreement			8 years
Endo Ventures Supply Agreement | Working Capital Advance
Supply Commitment [Line Items]
Initial term of supply agreement	8 years
Endo Ventures Termination Agreement
Supply Commitment [Line Items]
Cash consideration received		$ 1,500
Loss on lease		2,500		$ 500
Payment of contract termination costs				1,800
Asset retirement obligation					$ 600
Accrued contract termination costs		700		$ 700				$ 700
Settlement of Accounts Receivable | Endo Ventures Termination Agreement
Supply Commitment [Line Items]
Cash consideration received		4,700
Extinguishment of Promissory Note | Endo Ventures Termination Agreement
Supply Commitment [Line Items]
Cash consideration received		$ 2,300