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Note 9 - Net Loss Per Share (Tables)
3 Months Ended
Jan. 31, 2021
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
  

Three months ended

 
  

January 31,

 
  

2021

  

2020

 

Net loss (numerator)

 $(2,141,480) $(2,591,888)

Shares (denominator)

  7,352,781   7,322,195 

Basic and diluted net loss per share

 $(0.29) $(0.35)