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Note 10 - Other Loans Payable (Tables)
6 Months Ended
Jan. 31, 2021
Other Loans Payable [Member]  
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   
January 31, 2021
   
July 31, 2020
 
Government loan payable
 
$
31,299
    $
307,092
 
Promissory note payable
 
 
349,769
     
-
 
   
$
381,068
    $
307,092
 
                 
Current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
31,299
    $
-
 
Promissory note payable
 
 
186,830
     
-
 
   
$
218,129
    $
-
 
Non-current portion
 
 
 
 
 
 
 
 
Government loan payable
 
$
-
    $
307,092
 
Promissory note payable
 
 
162,939
     
-
 
   
$
162,939
    $
307,092