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Property and Equipment - at cost
9 Months Ended
Apr. 30, 2017
Property, Plant and Equipment [Abstract]  
Property and Equipment - at cost
6. Property and Equipment – at cost:
          
April 30 July 31
                 2017 2016
Property:        
         Buildings and improvements   $      80,448,661   $      77,693,718
       Improvements to leased property 1,478,012 1,478,012
       Land 6,067,805 6,067,805
       Construction in progress 554,809 1,697,292
  88,549,287 86,936,827
Less accumulated depreciation 39,230,402 38,008,810
              Property - net 49,318,885 48,928,017
 
Fixtures and equipment and other:
       Fixtures and equipment 144,545 144,545
       Other fixed assets 193,016 195,478
  337,561 340,023
       Less accumulated depreciation 209,304 203,303
       Fixtures and equipment and other - net 128,257 136,720
 
                     Property and equipment - net $ 49,447,142 $ 49,064,737
 
       Construction in progress includes:
  April 30 July 31
  2017 2016
Building improvements at 9 Bond Street in Brooklyn, NY $ 554,809 $
Building improvements at 25 Elm Place in Brooklyn, NY 1,697,292
$ 554,809 $ 1,697,292