Contractual Agreements (Details)			1 Months Ended	12 Months Ended
	Jul. 20, 2015 USD ($) ft²	Oct. 29, 2014 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 19, 2015 ft²	Apr. 23, 2015
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Rentable area (in sqft) | ft²					12,118
Silicon Valley Bank
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Liquidity ratio						1.2500
Migranal | Sales Revenue, Services, Net
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Proceeds from contract termination			$ 500,000
Zohydro ER
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Product exclusivity period		3 years
First payment of royalty agreement		$ 5,000,000
Second royalty payment		5,000,000
Sales threshold to receive royalty payments		$ 5,000,000
Zohydro ER | Sales Revenue, Services, Net
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Revenue recognized				$ 5,000,000
Amended Lease Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Rentable area (in sqft) | ft²	9,916
Renewal term	5 years
Rental payments	$ 6,800,000