The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Face (par) amount of debt instrument at time of issuance.

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Contract Manufacturing Agreement with Endo (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 17, 2016	May 31, 2014	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2017	Jun. 30, 2016
Supply Commitment [Line Items]
Asset Retirement Obligation			$ 600			$ 600
Asset impairment charges						920	$ 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