BUSINESS SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2014 Region Segment		Jan. 31, 2013		Jan. 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	$ 73,530	$ 65,660	$ 65,194	$ 61,927	$ 65,786	$ 61,709	$ 60,969	$ 63,708	$ 266,311		$ 252,172		$ 247,258
Capital expenditures									4,779		3,071		3,781
Property and equipment, net	33,085				32,526				33,085		32,526
Percentage of sales into Canada to North America total revenue (in hundredths)									2.00%		3.00%		3.00%
North America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									113,937	[1]	109,388	[1]	103,272	[1]
Capital expenditures									2,440		1,664		1,724
Property and equipment, net	26,861				26,854				26,861		26,854
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									89,133		76,182		75,965
Capital expenditures									1,224		1,071		935
Property and equipment, net	4,677				4,543				4,677		4,543
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									46,391		48,346		47,707
Capital expenditures									1,029		264		1,004
Property and equipment, net	1,394				946				1,394		946
Latin America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									16,850		18,256		20,314
Capital expenditures									86		72		118
Property and equipment, net	$ 153				$ 183				$ 153		$ 183

[1] Sales into Canada accounted for 2%, 3% and 3% of North America total revenue 2014, 2013 and 2012, respectively.