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FAIR VALUE (Details) - Assets measured at fair value on a non-recurring basis (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2014
Jan. 31, 2013
FAIR VALUE (Details) - Assets measured at fair value on a non-recurring basis [Line Items]    
Property and equipment, net $ 521 $ 2,096
Assets Measured At Fair Value On A Non Recurring Basis Subsequent [Member] | Fair Value, Inputs, Level 3 [Member]
   
FAIR VALUE (Details) - Assets measured at fair value on a non-recurring basis [Line Items]    
Property and equipment, net 521 2,096
Assets Measured At Fair Value On A Non Recurring Basis Subsequent [Member]
   
FAIR VALUE (Details) - Assets measured at fair value on a non-recurring basis [Line Items]    
Property and equipment, net $ 55 $ 419