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Financial Instruments (Tables)
3 Months Ended
Apr. 30, 2014
Disclosure Text Block Supplement [Abstract]  
Schedule of Notional Amounts and Fair Values of Derivatives Not Designated As Cash Flow Hedges [Table Text Block] The notional amount and fair value of the derivative, which is not designated as a cash flow hedge at April 30, 2014, are summarized in the table below (amounts in thousands):

    Notional
Amount
    Fair Value
Liability
 
                 
Interest rate swap   $ 32,300     $ 747