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Schedule II - Schedule of Valuation and Qualifying Accounts (Tables)
 12 Months Ended
Jan. 31, 2020
Notes Tables  
Schedule of Valuation and Qualifying Accounts [Table Text Block]
   
Balance at
Beginning
of Period
    
Charged
to Statements
of Operations and
Comprehensive
(Loss)
Income
    
Write-Offs,
Net of
Recoveries
    
Impact of
Foreign
Currency
Translation
    
Balance at
End of
Period
  
Year ended January 31,
201
8
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Allowance for bad debt
   $
1,090
     $
98
     $
(834
)
   $
42
     $
396
  
Allowance for sales adjustments
    
1,115
      
923
      
(733
)
    
62
      
1,367
  
Total allowance for doubtful accounts
   $
2,205
     $
1,021
     $
(1,567
)
   $
104
     $
1,763
  
Year ended January 31, 201
9
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Allowance for bad debt
   $
396
     $
144
     $
(31
)
   $
(22
)
   $
487
  
Allowance for sales adjustments
    
1,367
      
1,608
      
(518
)
    
(43
)
    
2,414
  
Total allowance for doubtful accounts
   $
1,763
     $
1,752
     $
(549
)
   $
(65
)
   $
2,901
  
Year ended January 31, 2020
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
  
 
 
 
Allowance for bad debt
   $
487
     $
92
     $
(24
)
   $
(12
)
   $
543
  
Allowance for sales adjustments
    
2,414
      
393
      
(376
)
    
(34
)
    
2,397
  
Total allowance for doubtful accounts
   $
2,901
     $
485
     $
(400
)
   $
(46
)
   $
2,940