Note 12 - Commitments and Contingencies - Asbestos Related Lawsuits and Claims (Details) - Asbestos Related Lawsuits and Claims [Member] Pure in Thousands, $ in Thousands	9 Months Ended	36 Months Ended
Aug. 27, 2022 USD ($)	Aug. 28, 2021 USD ($)	Nov. 27, 2021 USD ($)
Lawsuits and claims settled	3	2	14
Settlement amounts	$ 206	$ 85	$ 639
Insurance payments received or expected to be received	$ 139	$ 55	$ 434

Number of claims settled.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349

Name:	us-gaap_LossContingencyClaimsSettledNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration