Note 9 - Post Employment Benefit Obligations - Deferred Compensation Liability (Details) - Deferred Compensation Plans [Member] - USD ($) $ in Thousands	Aug. 31, 2019	Nov. 24, 2018
Liability for all deferred compensation arrangements	$ 2,568	$ 2,319
Accrued Compensation and Benefits [Member]
Liability for all deferred compensation arrangements	266	266
Post Employment Benefit Obligations [Member]
Liability for all deferred compensation arrangements	$ 2,302	$ 2,053

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