Note 8 - Post Employment Benefit Obligations - Components of Net Periodic Pension Cost (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 28, 2022	May 29, 2021	May 28, 2022	May 29, 2021
Service cost	$ 9	$ 31	$ 18	$ 60
Interest cost	58	48	115	98
Amortization of prior service costs	31	31	63	63
Amortization of loss	33	15	67	30
Net periodic pension cost	$ 131	$ 125	$ 263	$ 251