Note 2 - Interim Financial Presentation and Other Information (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 26, 2023	Aug. 27, 2022	Aug. 26, 2023	Aug. 27, 2022
Effective Income Tax Rate Reconciliation, Percent	18.80%	25.60%	43.30%	22.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%		21.00%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Goodwill Differences	$ 522		$ 522
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability			$ 6,026	$ 6,957

The difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to impairment of non-deductible goodwill.

No definition available.

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- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-12

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
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-Topic 842
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