Note 10 - Post-employment Benefit Obligations - Plan Summary (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 26, 2022	Nov. 27, 2021	Nov. 28, 2020
Projected benefit obligation at beginning of year	$ 10,740	$ 10,071
Service cost	36	121	$ 172
Interest cost	231	196	268
Actuarial (gains) and losses	(2,503)	762
Benefits paid	(1,242)	(409)
Projected benefit obligation at end of year	7,262	10,740	$ 10,071
Accumulated Benefit Obligation	$ 7,262	$ 10,740
Discount rate used to value the ending benefit obligations:	5.38%	2.25%
Current liabilities	$ 698	$ 913
Noncurrent liabilities	6,564	9,827
Total amounts recognized	7,262	10,740
Prior service cost	229	355
Actuarial (gain) loss	(543)	2,093
Net amount recognized	(314)	2,448
Total recognized in net periodic benefit cost and accumulated other comprehensive income:	$ (2,236)	$ 1,078