ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			$ (8,036)
Other comprehensive income before reclassifications	18	(75)	391	70
Amounts reclassified from accumulated other comprehensive loss			0
Net current period other comprehensive income			391
Balance as of end of period	(7,645)		(7,645)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period			(8,036)
Other comprehensive income before reclassifications			391
Amounts reclassified from accumulated other comprehensive loss			0
Net current period other comprehensive income			391
Balance as of end of period	$ (7,645)		$ (7,645)