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Note 15 - Loss Per Share (Tables)
9 Months Ended
Apr. 30, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended April 30,
   
Nine Months Ended April 30,
 
   
2021
   
2020
   
2021
   
2020
 
Numerator
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Net Loss for the Period
 
$
(4,590,161
)
  $
(3,273,644
)  
$
(13,014,757
)
  $
(10,204,882
)
                                 
Denominator
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic Weighted Average Number of Shares
 
 
218,822,085
     
183,896,944
   
 
202,304,157
     
182,637,673
 
Dilutive Stock Options, RSUs, PRSUs and Warrants
 
 
-
     
-
   
 
-
   
 
-
 
Diluted Weighted Average Number of Shares
 
 
218,822,085
     
183,896,944
   
 
202,304,157
     
182,637,673
 
                                 
Net Loss per Share, Basic and Diluted
 
$
(0.02
)
  $
(0.02
)  
$
(0.06
)
  $
(0.06
)