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FAIR VALUE (Detail) - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (USD $)
In Thousands, unless otherwise specified
Jan. 31, 2013
Jan. 31, 2012
Cash Equivalents $ 2 $ 2
Money Market Mutual Fund 300 [1] 620 [1]
Investment in Cooperative 252 [1] 219 [1]
Total Assets 554 841
Interest Rate Swap Derivative Liabilities 2,789 4,235
Fair Value, Inputs, Level 1 [Member]
    
Cash Equivalents 2 2
Money Market Mutual Fund 300 [1] 620 [1]
Total Assets 302 622
Fair Value, Inputs, Level 2 [Member]
    
Interest Rate Swap Derivative Liabilities 2,789 4,235
Fair Value, Inputs, Level 3 [Member]
    
Investment in Cooperative 252 [1] 219 [1]
Total Assets $ 252 $ 219
[1] The money market mutual fund is included in "Restricted investments and deposits" and the investment in cooperative is included in "Other assets" on the accompanying Consolidated Balance Sheets.