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Note 6 - Earnings (Loss) Per Share (Tables)
9 Months Ended
Jul. 31, 2021
Notes Tables  
Schedule of Weighted Average Number of Shares [Table Text Block]
  

Three Months Ended July 31,

  

Nine Months Ended July 31,

 
  

2021

  

2020

  

2021

  

2020

 
                 

Weighted average shares outstanding for basic earnings (loss) per share

  9,979,578   9,714,700   9,955,193   9,661,054 
                 

Add effects of potentially dilutive securities-assumed exercise of stock options

  170,818   -   175,979   - 
                 

Weighted average shares outstanding for diluted earnings (loss) per share

  10,150,396   9,714,700   10,131,172   9,661,054