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Retained Earnings (Tables)
6 Months Ended
Jan. 31, 2012
Retained Earnings [Abstract]  
Schedule Of Changes In Retained Earnings

Balance as of July 31, 2011

   $       829,148    

Net income

     36,038    

Dividends paid

     (16,454)    
  

 

 

 

Balance as of January 31, 2012

   $       848,732