ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2015	Oct. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			$ (7,418)
Other comprehensive income	$ (466)	$ 873	(1,138)	$ 666
Balance as of end of period	(8,556)		(8,556)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			(7,418)
Other comprehensive income			(1,138)
Amounts reclassified from accumulated other comprehensive loss			0
Net current period other comprehensive income			(1,138)
Balance as of end of period	$ (8,556)		$ (8,556)