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Note 6 - Impairment of Long-lived Assets (Tables)
3 Months Ended
Apr. 30, 2021
Notes Tables  
Schedule of Goodwill [Table Text Block]
(In thousands)
   
January 31, 2021
     
Foreign exchange change effect
     
April 30, 2021
 
Goodwill
  $
2,332
    $
95
    $
2,427