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Note 12 - Interest Expense, Net (Tables)
12 Months Ended
Jan. 31, 2020
Notes Tables  
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
(In thousands)
 
2019
 
2018
Interest expense
  $
1,106
 
  $
1,286
 
Interest income
   
(201
)
   
(164
)
Interest expense, net
  $
905
 
  $
1,122