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Note 10 - Interest Expense, Net (Tables)
12 Months Ended
Jan. 31, 2021
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
(In thousands)
 
2020
 
2019
Interest expense
  $
649
 
  $
1,106
 
Interest income
   
(268
)
   
(201
)
Interest expense, net
  $
381
 
  $
905