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Note 10 - Other Loans Payable (Tables)
12 Months Ended
Jul. 31, 2021
Other Loans Payable [Member]  
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
July 31, 2021
   
July 31, 2020
 
Government loan payable
 
$
-
    $
307,092
 
Promissory note payable
 
 
257,462
     
-
 
   
$
257,462
    $
307,092
 
                 
Current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
-
    $
-
 
Promissory note payable
 
 
191,510
     
-
 
   
$
191,510
    $
-
 
Non-current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
-
    $
307,092
 
Promissory note payable
 
 
65,952
     
-
 
   
$
65,952
    $
307,092