Collaboration and Other Agreements - Collaboration and License Agreement with Les LaboratoiresServier (Details Narrative) (Collaboration and License Agreement with Les LaboratoiresServier, USD $) In Thousands, unless otherwise specified	1 Months Ended
	Oct. 31, 2011	May 31, 2009	Apr. 30, 2011
Upfront payment received		$ 11,000
Upfront payment received, Net of withholding taxes		10,450
Additional payment received under collaborative arrangement		4,000
Reveune recognized over, Periods		2 years
Maximum milestone payments		24,500
Advance revenue from achievement of clinical development milestones	7,000
Milestone payment paid in advance upon achievement of pre-specified events			7,000
Achievement of Clinical Development
Maximum milestone payments		10,500
Achievement of Regulatory Progress
Maximum milestone payments		5,000
Regulatory Approval
Maximum milestone payments		$ 9,000