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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Detail) - Summary of Fair Value of Assets and Liabilities Measure on Recurring Basis (USD $)
In Thousands, unless otherwise specified
Apr. 23, 2012
Feb. 24, 2013
Fair Value, Inputs, Level 1 [Member]
Feb. 24, 2013
Fair Value, Inputs, Level 2 [Member]
May 27, 2012
Fair Value, Inputs, Level 2 [Member]
Feb. 24, 2013
Fair Value, Inputs, Level 3 [Member]
May 27, 2012
Fair Value, Inputs, Level 3 [Member]
Marketable securities   $ 3,790        
Investment in private company         27,800 21,500
Total   3,790     27,800 21,500
Contingent consideration (3,933)         3,933
Interest rate swap     203 347    
Total     $ 203 $ 347   $ 3,933