Note 8 - Post Employment Benefit Obligations - Deferred Compensation Liability (Details) - Deferred Compensation Plans [Member] - USD ($) $ in Thousands	Feb. 27, 2021	Nov. 28, 2020
Liability for all deferred compensation arrangements	$ 3,197	$ 2,927
Accrued Compensation and Benefits [Member]
Liability for all deferred compensation arrangements	296	296
Post Employment Benefit Obligations [Member]
Liability for all deferred compensation arrangements	$ 2,901	$ 2,631

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 710
-SubTopic 10
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20015-108363

Name:	us-gaap_DeferredCompensationArrangementWithIndividualRecordedLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant