ACCUMULATED OTHER COMPREHENSIVE LOSS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2014	Apr. 30, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period	$ (6,958)
Other comprehensive income	139	373
Balance as of end of period	(6,819)
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Balance as of beginning of period	(6,958)
Other comprehensive income	139
Amounts reclassified from accumulated other comprehensive loss	0
Net current period other comprehensive income	139
Balance as of end of period	$ (6,819)