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BUSINESS SEGMENT INFORMATION (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2015
USD ($)
Oct. 31, 2014
USD ($)
Oct. 31, 2015
USD ($)
Region
Segment
Oct. 31, 2014
USD ($)
BUSINESS SEGMENT INFORMATION [Abstract]        
Number of geographic regions | Region     4  
Number of operating segments | Segment     1  
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue $ 68,037 $ 74,004 $ 208,593 $ 215,539
Percentage of sales into Canada of North America total revenue 2.00% 2.00% 2.00% 2.00%
North America [Member] | Reportable Geographical Components [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue [1] $ 32,417 $ 33,069 $ 96,168 $ 93,115
EMEA [Member] | Reportable Geographical Components [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue 19,376 23,362 62,730 73,244
Asia Pacific [Member] | Reportable Geographical Components [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue 11,813 12,485 35,135 35,688
Latin America [Member] | Reportable Geographical Components [Member]        
Revenues From External Customers And Long Lived Assets [Line Items]        
Revenue $ 4,431 $ 5,088 $ 14,560 $ 13,492
[1] Sales into Canada accounted for 2% of North America total revenue in each of the three and nine months ended October 31, 2015 and 2014.