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Note 1 - Organization, Basis of Presentation and Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Aug. 26, 2012
 
At August 26, 2012
    At May 27, 2012
Revenue growth rates
3% 
to  10%    3%  to
  24%
Expense growth rates
3%
to  8%    3%  to
 18%
Income tax rates
8%
to  25%     
25%
 
Discount rates
16%
to  27%    16%  to
 27%
Schedule of Discounted Cash Flow [Table Text Block]
 
Impact on value of Windset investment as of August 26, 2012
10% increase in revenue growth rates
$1,000
10% increase in expense growth rates
($600)
10% increase in income tax rates
($100)
10% increase in discount rates
($250)
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   
Fair Value at August 26, 2012 (Restated)
   
Fair Value at May 27, 2012
       
Assets:
 
Level 1
   
Level 2
   
Level 3
   
Level 1
   
Level 2
   
Level 3
 
Marketable securities
  $ 756     $ -     $ -     $ -     $ -     $ -  
Investment in private company
    -       -       25,796       -       -       21,500  
      Total
  $ 756     $ -     $ 25,796     $ -     $ -     $ 21,500  
                                                 
Liabilities:
                                               
Contingent consideration
  $ -     $ -     $ 3,956     $ -     $ -     $ 3,926  
Interest rate swap
    -       305       -       -       347       -  
      Total
  $ -     $ 305     $ 3,956     $ -     $ 347     $ 3,926