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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
May 25, 2014
May 26, 2013
Fair Value, Inputs, Level 1 [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]    
Marketable securities   $ 1,545
Total   1,545
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 44 163
Total 44 163
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 39,600 29,600
Total $ 39,600 $ 29,600