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CASH FLOW INFORMATION
12 Months Ended
Jul. 31, 2012
Supplemental Cash Flow Elements [Abstract]  
Cash Flow, Supplemental Disclosures [Text Block]

10. CASH FLOW INFORMATION:

     For purposes of reporting cash flows, the Company considers cash equivalents to consist of short-term highly liquid investments with maturities of three months or less, which are readily convertible into cash.

     Supplemental disclosures:

July 31,
      2012       2011       2010
Interest paid, net of capitalized interest of $4,056 (2012),  
       $44,108 (2011) and $569 (2010) $ 541,301   $ 658,004 $ 723,623
Income taxes paid $ 259,061 $ 333,380 $ 864,174