Note 10 - Post-employment Benefit Obligations - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 25, 2023	Nov. 26, 2022	Nov. 27, 2021
Service cost	$ 27	$ 36	$ 121
Interest cost	370	231	196
Amortization of prior service cost	125	126	126
Amortization of other loss	0	133	59
Net periodic pension cost	$ 522	$ 526	$ 502
Pension Plan [Member]
Discount rate	5.38%	2.25%	2.00%
Increase in future compensation levels	3.00%	3.00%	3.00%