Endo License and Development Agreement (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	6 Months Ended
	May 31, 2012	Jun. 30, 2012	Jan. 17, 2012
Endo License and Development Agreement (Textual) [Abstract]
Non-refundable payment received			$ 30
Potential milestone payments		95
Potential milestone payments on issuance of patent		15
Payments receivable on achievement of potential sales milestones		55
Term of Endo Agreement		10 years
Extended patent on drug delivery technology		2020 to 2027
Milestone payment received	15
Additional milestone payment		$ 20