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Research and Development (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Sep. 30, 2012
Payments
Jun. 30, 2012
Research and Development [Abstract]    
Amount payable as of date of development agreement $ 3,500  
Payment terms associated with development agreement 60 days  
Number of payments due upon completion of milestones 2  
Amount payable upon completion of milestones 1,750  
Research and development benefit recognized $ 3,063 $ 437