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Note 6 - Debt - Long-term Debt (Details) - USD ($)
$ in Thousands
May 29, 2016
May 31, 2015
Real Estate Loan [Member]    
Long-term Debt $ 14,167 $ 15,172
Capital Equipment Loan 1 [Member]    
Long-term Debt 5,904 7,705
Capital Equipment Loan 2 [Member]    
Long-term Debt 5,558 6,476
Capital Equipment Loan 3 [Member]    
Long-term Debt 3,375 3,907
Capital Equipment Loan 4 [Member]    
Long-term Debt 3,158 3,819
Real Estate Loan 2 [Member]    
Long-term Debt 7,622
Capital Equipment Loan 5 [Member]    
Long-term Debt 8,873
Capital Equipment Loan 6 [Member]    
Long-term Debt 3,940
Term Note [Member]    
Long-term Debt 3,000
Industrial Revenue Bonds [Member]    
Long-term Debt 2,065 2,440
Long-term Debt 54,662 42,519
Less current portion (8,048) (8,353)
Long-term portion $ 46,614 $ 34,166