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Note 11 - Other Loans Payable (Tables)
9 Months Ended
Apr. 30, 2021
Other Loans Payable [Member]  
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
April 30, 2021
   
July 31, 2020
 
Government loan payable
 
$
-
    $
307,092
 
Promissory note payable
 
 
303,880
     
-
 
   
$
303,880
    $
307,092
 
                 
Current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
-
    $
-
 
Promissory note payable
 
 
189,143
     
-
 
   
$
189,143
    $
-
 
Non-current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
-
    $
307,092
 
Promissory note payable
 
 
114,737
     
-
 
   
$
114,737
    $
307,092