BUSINESS SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Oct. 31, 2013		Oct. 31, 2012		Oct. 31, 2013 Region Segment		Oct. 31, 2012
BUSINESS SEGMENT INFORMATION [Abstract]
Number of geographic regions					4
Number of operating segments					1
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 65,660		$ 61,709		$ 192,781		$ 186,386
Percentage of sales into Canada to North America total revenue (in hundredths)	2.00%		3.00%		2.00%		3.00%
North America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	28,571	[1]	26,305	[1]	82,675	[1]	81,034	[1]
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	21,707		18,674		63,344		56,032
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	11,236		11,933		34,379		35,543
Latin America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 4,146		$ 4,797		$ 12,383		$ 13,777

[1] Sales into Canada accounted for 2% of North America total revenue for both the three and nine months ended October 31, 2013, respectively and for 3% of North America total revenue for both the three and nine months ended October 31, 2012.