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Note 15 - Shareholders' Equity (Tables)
 12 Months Ended
Oct. 31, 2020
Notes Tables  
Schedule of Share Repurchases [Table Text Block]

Fiscal years ended

October 31,

 

Shares

repurchased

  

Cost

 

2020

  —  $— 

2019

  351   1,573 

2018

  272   1,557