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Note 10 - Debt (Details) - Long-term Debt (USD $) In Thousands, unless otherwise specified	Aug. 25, 2013	May 26, 2013
Debt Instrument [Line Items]
Debt balance	$ 38,922	$ 40,305
Less current portion	(5,961)	(5,933)	[1]
Long-term portion	32,961	34,372	[1]
Real Estate Loan [Member]
Debt Instrument [Line Items]
Debt balance	16,837	17,065
Capital Equipment Loan [Member]
Debt Instrument [Line Items]
Debt balance	10,675	11,080
Term Note [Member]
Debt Instrument [Line Items]
Debt balance	8,250	9,000
Industrial Revenue Bonds [Member]
Debt Instrument [Line Items]
Debt balance	$ 3,160	$ 3,160
[1] Derived from audited financial statements.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7



Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Name Accounting Standards Codification

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19,20)

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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