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Note 11 - Other Income (Expense), Net (Tables)
6 Months Ended
May 31, 2022
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
  

Three months ended May 31,

  

Six months ended May 31,

 
  

2022

  

2021

  

2022

  

2021

 

Change in fair market value of marketable securities

 $213  $258  $713  $484 

Interest income

  151   80   287   258 

Foreign exchange loss

  (47)  (1,043)  (159)  (1,526)
  $317  $(705) $841  $(784)