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Stock-based Compensation (Tables)
12 Months Ended
Jun. 30, 2012
Stock-Based Compensation Tables  
Schedule of weighted average assumptions for option awards
      2012       2011  
Dividend yield     3.58%       4.69%  
Expected stock price volatility     31.37%       33.13%  
Risk-free interest rate     0.56%       1.08%  
Expected option life (in years)     3.7 yrs       4.1yrs  
Weighted average fair value per share                
   of options granted during the period   $ 4.323     $ 3.335  
Schedule of stock option activity

The following table summarizes stock option activity during the twelve months ended June 30, 2012:

 

   Employee Stock Options Plan 
           Weighted    
   Number of  Weighted   Average    
   Shares  Average   Remaining  Aggregate 
   Subject  Exercise   Contractual  Intrinsic 
   To Option  Price   Term  Value 
Balance at July 1, 2011   132,400   $18.62    6.80      
Granted   58,700   $25.14    9.54      
Exercised   (3,800)  $17.12          
Forfeited or expired   (250)  $25.10          
Outstanding at June 30, 2012   187,050   $20.69    6.96   $1,070,759 
Vested or expected to vest at June 30, 2012   174,768   $20.52    6.81   $1,029,384 
Exercisable at June 30, 2012   98,000   $18.49    5.05   $775,931