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Note 9 - Net Loss Per Share (Tables)
6 Months Ended
Apr. 30, 2025
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three months ended

   

Six months ended

 
   

April 30,

   

April 30,

 
   

2025

   

2024

   

2025

   

2024

 

Net loss (numerator)

  $ (697,922 )   $ (1,601,346 )   $ (1,805,353 )   $ (3,026,620 )

Shares (denominator)

    7,798,366       7,710,801       7,810,179       7,731,605  

Basic and diluted net loss per share

  $ (0.09 )   $ (0.21 )   $ (0.23 )   $ (0.39 )