BUSINESS SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2015 Region Segment		Jan. 31, 2014		Jan. 31, 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	$ 79,562	$ 74,004	$ 73,050	$ 68,485	$ 73,530	$ 65,660	$ 65,194	$ 61,927	$ 295,101		$ 266,311		$ 252,172
Capital expenditures									4,577		4,779		3,071
Property and equipment, net	33,154				33,085				33,154		33,085
Percentage of sales into Canada to North America total revenue (in hundredths)									2.00%		2.00%		3.00%
North America [Member] | Reportable Segments [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									129,693	[1]	113,937	[1]	109,388	[1]
Capital expenditures									3,468		2,440		1,664
Property and equipment, net	27,967				26,861				27,967		26,861
EMEA [Member] | Reportable Segments [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									98,279		89,133		76,182
Capital expenditures									482		1,224		1,071
Property and equipment, net	3,617				4,677				3,617		4,677
Asia Pacific [Member] | Reportable Segments [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									48,292		46,391		48,346
Capital expenditures									576		1,029		264
Property and equipment, net	1,455				1,394				1,455		1,394
Latin America [Member] | Reportable Segments [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue									18,837		16,850		18,256
Capital expenditures									51		86		72
Property and equipment, net	$ 115				$ 153				$ 115		$ 153

[1] Sales into Canada accounted for 2%, 2% and 3% of North America total revenue 2015, 2014 and 2013, respectively.