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Note 20 - Segmented Information (Tables)
12 Months Ended
Jan. 31, 2018
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
     
January 31,

2018
     
January 31,

2017
     
January 31,

2016
 
Revenues                        
United States    
133,263
     
106,672
     
96,300
 
Europe, Middle-East and Africa    
77,576
     
75,165
     
68,451
 
Canada    
15,667
     
13,266
     
12,572
 
Asia Pacific    
10,933
     
8,676
     
7,670
 
     
237,439
     
203,779
     
184,993
 
Schedule of Segment Reporting Information, by Segment [Table Text Block]
     
January 31,

2018
     
January 31,

2017
     
January 31,

2016
 
Revenues                        
Services    
229,294
     
196,867
     
176,288
 
Licenses    
8,145
     
6,912
     
8,705
 
     
237,439
     
203,779
     
184,993
 
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]
     
January 31,

2018
     
January 31,

2017
 
Total long-lived assets                
United States    
108,077
     
71,805
 
Europe, Middle-East and Africa    
37,857
     
40,872
 
Canada    
44,865
     
43,215
 
     
190,799
     
155,892