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Share-Based Compensation (Tables)
3 Months Ended
Sep. 30, 2012
Schedule of Fair Value Assumptions under Stock Option Plan
     Three Months Ended
September 30, 2012
    Three Months Ended
September 30, 2011
 

Risk free interest rate

     0.93     1.07

Expected volatility

     49     59

Expected life of options

     5.65 years        5.51 years   

Dividend yield

     None        None