BUSINESS SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2014 Segment Region		Apr. 30, 2013
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	$ 68,485		$ 61,927
Percentage of sales into Canada to North America total revenue (in hundredths)	2.00%		3.00%
North America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	29,139	[1]	26,566	[1]
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	24,151		19,807
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	11,332		11,654
Latin America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 3,863		$ 3,900

[1] Sales into Canada accounted for 2% and 3% of North America total revenue in the three months ended April 30, 2014 and 2013, respectively.