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Note 19 - Other Charges (Tables)
12 Months Ended
Jan. 31, 2019
Notes Tables  
Schedule of Other Operating Cost and Expense, by Component [Table Text Block]
Year Ended   January 31,
2019
    January 31,
2018
    January 31,
2017
 
Acquisition-related costs    
3,778
     
3,471
     
3,019
 
Restructuring plans    
20
     
523
     
436
 
     
3,798
     
3,994
     
3,455
 
Restructuring and Related Costs [Table Text Block]
    Workforce
Reduction
 
Balance at January 31, 2017    
-
 
Accruals and adjustments    
456
 
Cash draw downs    
(211
)
Balance at January 31, 2018    
245
 
Accruals and adjustments    
4
 
Cash draw downs    
(249
)
Balance at January 31, 2019    
-