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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Fair Value of Assets and Liabilities Measure on Recurring Basis (USD $)
In Thousands, unless otherwise specified
Apr. 23, 2012
May 26, 2013
Fair Value, Inputs, Level 1 [Member]
May 26, 2013
Fair Value, Inputs, Level 2 [Member]
May 27, 2012
Fair Value, Inputs, Level 2 [Member]
May 26, 2013
Fair Value, Inputs, Level 3 [Member]
May 27, 2012
Fair Value, Inputs, Level 3 [Member]
Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Details) - Summary of Fair Value of Assets and Liabilities Measure on Recurring Basis [Line Items]            
Marketable securities   $ 1,545        
Investment in private company         29,600 21,500
Total   1,545     29,600 21,500
Contingent consideration (3,933)         3,933
Interest rate swap     163 347    
Total     $ 163 $ 347   $ 3,933