Note 17 - Earnings (Loss) Per Share - Antidilutive Securities (Details) - shares	12 Months Ended
Nov. 26, 2022	Nov. 27, 2021	Nov. 28, 2020
Restricted Stock [Member]
Antidilutive securities (in shares)	0	0	90,153
Share-Based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	0	0	5,250

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration