Note 8 - Post-Employment Benefit Obligations (Details) - Components of net periodic pension costs (USD $) In Thousands, unless otherwise specified	3 Months Ended	9 Months Ended
Aug. 31, 2013	Aug. 25, 2012	Aug. 31, 2013	Aug. 25, 2012
Components of net periodic pension costs [Abstract]
Service cost	$ 18	$ 14	$ 53	$ 41
Interest cost	87	94	262	282
Amortization of transition obligation	11	11	32	32
Amortization of loss	20	3	61	8
Net periodic pension cost	$ 136	$ 122	$ 408	$ 363

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The amount of gains or losses recognized in net periodic benefit cost.

+ References

+ Details

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- Definition

The amount of the transition obligation or asset recognized in net periodic benefit cost.

+ References

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- Definition

The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

+ References

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- Definition

The total amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) due to settlements or curtailments.

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- Definition

The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (h)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Service Cost (Component of Net Periodic Pension Cost)

-URI http://asc.fasb.org/extlink&oid=6525008

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920

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