ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			$ (7,418)
Other comprehensive income	$ (745)	$ (346)	(672)	$ (207)
Balance as of end of period	(8,090)		(8,090)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			(7,418)
Other comprehensive income			(672)
Amounts reclassified from accumulated other comprehensive loss			0
Net current period other comprehensive income			(672)
Balance as of end of period	$ (8,090)		$ (8,090)