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Note 11 - Other Income (Expense), Net (Tables)
6 Months Ended
May 31, 2023
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
   

Three months ended May 31,

   

Six months ended May 31,

 
   

2023

   

2022

   

2023

   

2022

 

Interest and dividend income

  $ 1,350     $ 151     $ 2,679     $ 287  

Gain on sale of mineral property

                556        

Change in fair market value of marketable securities

    79       213       378       713  

Foreign exchange gain (loss)

    (5 )     (47 )     36       (159 )
    $ 1,424     $ 317     $ 3,649     $ 841