Note 9 - Post Employment Benefit Obligations - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 27, 2023	May 28, 2022	May 27, 2023	May 28, 2022
Service cost	$ 7	$ 9	$ 14	$ 18
Interest cost	93	58	185	115
Amortization of prior service costs	31	31	63	63
Amortization of loss	0	33	0	67
Net periodic pension cost	$ 131	$ 131	$ 262	$ 263