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Note 7 - Accumulated Other Comprehensive Loss (Tables)
3 Months Ended
Apr. 30, 2017
Notes Tables  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
   
Foreign Currency
Translation
Adjustments
 
   
(in thousands)
 
Balance as of January 31, 201
7
  $
(8,631
)
Other comprehensive income before reclassifications
   
640
 
Amounts reclassified from accumulated other comprehensive loss
   
 
Net current period other comprehensive income
   
640
 
Balance as of April 30, 201
7
  $
(7,991
)