License, Commercialization and Supply Agreements (Details)	12 Months Ended		0 Months Ended	1 Months Ended	12 Months Ended		0 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Jul. 05, 2013 License and commercialization agreement SPEDRA Menarini Group EUR (€)	Oct. 31, 2013 License and commercialization agreement SPEDRA Menarini Group EUR (€)	Dec. 31, 2013 License and commercialization agreement SPEDRA Menarini Group USD ($)	Dec. 31, 2013 License and commercialization agreement SPEDRA Menarini Group EUR (€)	Jul. 05, 2013 License and commercialization agreement SPEDRA Menarini Group Minimum item	Dec. 31, 2013 Supply agreement USD ($)
License, Commercialization and Supply Agreements
Number of European countries covered under the license agreement							40
Termination period of the agreement from the launch of the product			10 years
Payment for non-refundable, non-creditable license fee received			€ 6,700,000
Payment for non-refundable, non-creditable license fee received before reimbursable withholding tax			8,000,000
Reimbursable withholding tax rate (as a percent)			16.00%	16.00%
Proceeds from payments for regulatory milestone			6,700,000
Proceeds from payments for regulatory milestone before reimbursable withholding tax			8,000,000
Reimbursable withholding tax rate on payment of regulatory milestone (as a percent)			16.00%
Prepayment received for future royalties				6,700,000
Prepayment received for future royalties before withholding tax				8,000,000
Current deferred revenue	17,255,000	1,150,000			10,600,000	8,000,000		5,100,000
License revenue	$ 55,838,000				$ 21,000,000	€ 16,000,000