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Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies (Details) - Fair Value of Assets and Liabilities Measure on Recurring Basis (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2014
May 25, 2014
Fair Value, Inputs, Level 2 [Member]
    
Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies (Details) - Fair Value of Assets and Liabilities Measure on Recurring Basis [Line Items]    
Interest rate swap $ 20 $ 44
Total 20 44
Fair Value, Inputs, Level 3 [Member]
    
Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies (Details) - Fair Value of Assets and Liabilities Measure on Recurring Basis [Line Items]    
Investment in private company 50,800 39,600
Total $ 50,800 $ 39,600