Note 10 - Post-employment Benefit Obligations - Non-current Portion of Obligations (Details) - USD ($) $ in Thousands	Nov. 29, 2025	Nov. 30, 2024
Post employment benefit obligations	$ 11,379	$ 10,882
Defined Benefit Plans [Member]
Post employment benefit obligations	6,175	6,125
Defined Benefit Plans [Member] | Supplemental Plan [Member]
Post employment benefit obligations	4,917	4,845
Defined Benefit Plans [Member] | LTC Awards [Member]
Post employment benefit obligations	1,258	1,280
Deferred Compensation Plans [Member]
Post employment benefit obligations	5,204	4,757
Deferred Compensation Plans [Member] | Management Savings Plan [member]
Post employment benefit obligations	3,968	3,486
Deferred Compensation Plans [Member] | Unfunded Deferred Compensation Plan [Member]
Post employment benefit obligations	$ 1,236	$ 1,271