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Note 6 - (Loss) Earnings Per Share (Tables)
3 Months Ended
Jan. 31, 2021
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
   
Three Months Ended January 31,
 
   
2021
   
2020
 
                 
Weighted average shares outstanding for basic (loss) earnings per share
   
9,864,689
     
9,564,533
 
                 
Add effects of potentially dilutive securities-assumed exercise of stock options
   
-
     
308,803
 
                 
Weighted average shares outstanding for diluted (loss) earnings per share
   
9,864,689
     
9,873,336