XML 27 R17.htm IDEA: XBRL DOCUMENT v3.4.0.3
Cash Flow Information
9 Months Ended
Apr. 30, 2016
Cash Flow Information: [Abstract]  
Cash Flow Information:
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 (3) months or less, which are readily convertible into cash.
 
Supplemental disclosure:   Nine Months Ended
  April 30
  2016   2015
Interest paid, net of capitalized interest of $49,084 (2016)        
       and $6,367 (2015)   $ 159,082   $ 280,522
Income taxes paid    $ 87,804   $ 387,163