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Note 14 - Business Segment Information (Tables)
6 Months Ended
Jul. 31, 2021
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
  

Three Months Ended

July 31,

  

Six Months Ended

July 31,

 
  

2021

  

2020

  

2021

  

2020

 
  

(in thousands)

  

(in thousands)

 

Revenue:

                

North America (1)

 $41,506  $38,998  $80,746  $76,000 

EMEA

  27,342   21,379   56,055   43,947 

Asia Pacific

  10,908   9,571   21,176   19,213 

Latin America

  5,083   4,133   9,833   9,068 
  $84,839  $74,081  $167,810  $148,228