Note 9 - Post-employment Benefit Obligations - Assumptions Used in Calculating Net Periodic Pension Cost (Details) - Pension Plan [Member]	12 Months Ended
Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
Discount rate	2.00%	2.75%	4.00%
Increase in future compensation levels	3.00%	3.00%	3.00%

Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920

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