Note 8 - Post Employment Benefit Obligations (Details Textual) - USD ($) $ in Thousands	May 02, 2017	May 28, 2022	Nov. 27, 2021
Postemployment Benefits Liability, Noncurrent		$ 13,055	$ 12,968
Unfunded Deferred Compensation Plan [Member]
Postemployment Benefits Liability, Noncurrent		1,652	1,648
Deferred Compensation, Management Savings Plan [Member]
Postemployment Benefits Liability, Noncurrent		1,964	1,789
Supplemental Employee Retirement Plan [Member] \| Defined Benefit Plan, Unfunded Plan [Member]
Liability, Other Postretirement Defined Benefit Plan		9,105	9,192
Management Savings Plan [member]
Defined Benefit Plan, Fixed Future Benefit Award	$ 2,000
Defined Benefit Plan, Fixed Future Benefit Award, Individual Participants	$ 400
Postemployment Benefits Liability, Noncurrent		1,543	1,548
Pension Plans Defined Benefit and Supplemental Employee Retirement Plan [Member]
Combined pension liability		10,648	10,740
Pension Plans Defined Benefit and Supplemental Employee Retirement Plan [Member] \| Post Employment Benefit Obligations [Member]
Combined pension liability		$ 9,735	$ 9,827

The fixed future benefit awarded to participants of the unfunded defined benefit plan.

No definition available.

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- Definition

The fixed future benefit awarded to each individual participant of the unfunded defined benefit plan.

+ References

No definition available.

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- Definition

Amount of liability, recognized in statement of financial position, for defined benefit other postretirement plan. Excludes pension plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

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- Definition

Amount of liability, recognized in statement of financial position, for pension, other postretirement and postemployment benefits.

+ References

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- Definition

For a classified balance sheet, the carrying amount as of the balance sheet date of the portion of the obligations recognized for the various benefits provided to former or inactive employees, their beneficiaries, and covered dependents after employment but before retirement that is payable after one year (or beyond the operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-SubTopic 10
-Section 25
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=6410138&loc=d3e79708-111665

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 712
-SubTopic 10
-Section 25
-Paragraph 4
-URI https://asc.fasb.org/extlink&oid=6410138&loc=d3e79691-111665

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