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Note 19 - Other Charges (Tables)
 12 Months Ended
Jan. 31, 2017
Notes Tables  
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Year Ended    
January 31,
2017
      
January 31,
2016
      
January 31,
2015
  
Acquisition-related costs    
3,019
      
1,416
      
1,666
  
Fiscal 2017 restructuring plan    
427
      
-
      
-
  
Fiscal 2015 restructuring plan    
9
      
50
      
715
  
Other restructuring plans    
-
      
26
      
99
  
Executive departure charges    
-
      
-
      
396
  
     
3,455
      
1,492
      
2,876
  
Restructuring and Related Costs [Table Text Block]
     
Workforce Reduction
      
Office Closure Costs
      
Total
  
Balance at January 31, 2016    
-
      
-
      
-
  
Accruals and adjustments    
309
      
118
      
427
  
Cash draw downs    
(308
 )    
(30
 )    
(338
 )
Foreign exchange    
(1
 )    
-
      
(1
 )
Balance at January 31, 2017    
-
      
88
      
88
  
     
Workforce Reduction
      
Office Closure Costs
      
Other Costs
      
Total
  
Balance at January 31, 2015    
226
      
220
      
-
      
446
  
Accruals and adjustments    
24
      
14
      
12
      
50
  
Cash draw downs    
(250
 )    
(93
 )    
(12
 )    
(355
 )
Balance at January 31, 2016    
-
      
141
      
-
      
141
  
Accruals and adjustments    
-
      
9
      
-
      
9
  
Cash draw downs    
-
      
(89
 )    
-
      
(89
 )
Balance at January 31, 2017    
-
      
61
      
-
      
61