BUSINESS SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 31, 2013	Oct. 31, 2012	Jul. 31, 2012	Apr. 30, 2012	Jan. 31, 2012	Oct. 31, 2011	Jul. 31, 2011	Apr. 30, 2011	Jan. 31, 2013 Region Segment		Jan. 31, 2012		Jan. 31, 2011
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	$ 65,786	$ 61,709	$ 60,969	$ 63,708	$ 65,165	$ 60,733	$ 61,957	$ 59,403	$ 252,172		$ 247,258		$ 220,012
Capital expenditures									3,071		3,781		1,432
Property and equipment, net	32,526				33,139				32,526		33,139
Percentage of sales into Canada to North America total revenue (in hundredths)									3.00%		3.00%		4.00%
North America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									109,388	[1]	103,272	[1]	93,145	[1]
Capital expenditures									1,664		1,724		873
Property and equipment, net	26,854				27,854				26,854		27,854
EMEA [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									76,182		75,965		66,646
Capital expenditures									1,071		935		216
Property and equipment, net	4,543				3,904				4,543		3,904
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									48,346		47,707		44,475
Capital expenditures									264		1,004		309
Property and equipment, net	946				1,146				946		1,146
Latin America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									18,256		20,314		15,746
Capital expenditures									72		118		34
Property and equipment, net	$ 183				$ 235				$ 183		$ 235

[1] Sales into Canada accounted for 3% of North America total revenue in fiscal 2013 and 2012 and 4% of North America total revenue in fiscal 2011, respectively.