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Stock-Based Compensation (Details 3) (Restricted stock units [Member], USD $)
3 Months Ended
Sep. 30, 2012
Restricted stock units [Member]
 
Unvested restricted stock units  
Number of RSUs, Beginning balance 1,467,533
Number of RSUs, Granted 52,000
Number of RSUs, Vested (3,333)
Number of RSUs, Cancelled   
Number of RSUs, Ending balance 1,516,200
Weighted-average grant date fair value per RSU, Beginning balance $ 2.12
Weighted-average grant date fair value per RSU, Granted $ 2.15
Weighted-average grant date fair value per RSU, Vested $ 12.59
Weighted-average grant date fair value per RSU, Cancelled   
Weighted-average grant date fair value per RSU, Ending balance $ 2.10