Note 10 - Post-employment Benefit Obligations - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 25, 2023	Nov. 26, 2022
Service cost	$ 13	$ 27	$ 36
Interest cost	391	370	231
Amortization of prior service cost	61	125	126
Amortization of other loss	(22)	0	133
Net periodic pension cost	$ 443	$ 522	$ 526
Pension Plan [Member]
Discount rate	5.92%	5.38%	2.25%
Increase in future compensation levels	3.00%	3.00%	3.00%