BUSINESS SEGMENT INFORMATION (Tables)
 3 Months Ended
Apr. 30, 2016
BUSINESS SEGMENT INFORMATION [Abstract]  
License and subscription revenues assigned to geographic regions
License and subscription revenues are assigned to the geographic regions based on both the proportion of users in each region and sales effort. Maintenance revenue is allocated to the region where the end user customer is located. Services revenue is assigned based on the region where the services are performed.

  
Three Months Ended
April 30,
 
  
2016
  
2015
 
Revenue:
 
(in thousands)
 
North America (1)
 
$
29,519
  
$
30,222
 
EMEA
  
19,792
   
21,802
 
Asia Pacific
  
11,680
   
11,725
 
Latin America
  
4,406
   
5,516
 
  
$
65,397
  
$
69,265
 
 
(1)Sales into Canada accounted for 2% of North America total revenue in each of the three months ended April 30, 2016 and 2015.