v2.4.0.6
Subsequent Events (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 12 Months Ended
Feb. 01, 2012
Dec. 31, 2011
Subsequent Events [Abstract]    
Received certain development, clinical and regulatory expenses, maximum $ 1.0  
Initial milestone eligible to be recognized 0.1  
Revenue received within thirty days of the execution of the agreement   0.9
Future consideration eligible to be received 2.0  
Aggregate arrangement consideration amount   3.0
Future milestone payments subject to the achievement of platform development milestones and regulatory approval of development milestones   4.0
Payments to holders of issued and outstanding convertible promissory notes   $ 1.5