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CASH FLOW INFORMATION (Tables)
12 Months Ended
Jul. 31, 2014
CASH FLOW INFORMATION [Abstract]  
Schedule of cash flow information

Supplemental disclosures:

    July 31,
        2014       2013       2012
Interest paid, net of capitalized interest of $16,300 (2014),                  
       $24,659 (2013) and $4,056 (2012)   $ 424,039   $ 427,278   $ 541,301
Income taxes paid   $ 720,583   $ 637,382   $ 259,061