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Stock-Based Compensation (Tables)
3 Months Ended
Sep. 30, 2012
Weighted Average Assumptions Used in Estimating Fair Values of Options Granted
The fair values of the options granted were estimated based on the following weighted average assumptions:
 
   
September 30,
2011
 
       
Expected life
 
5.7 years
 
Expected volatility
    48.10 %
Risk-free interest rate
    1.59 %
Dividend yield
    3.24 %