Note 10 - Pension and Postretirement Benefits - Pension Plans With Accumulated Benefit and Projected Benefit Obligations in Excess of Plan Assets (Details) - Pension Plan [Member] - USD ($) $ in Thousands	Nov. 29, 2025	Nov. 30, 2024
UNITED STATES
Accumulated benefit obligation	$ 11,655	$ 12,423
Fair value of plan assets	0	0
Projected benefit obligation	11,655	12,423
Fair value of plan assets	0	0
Foreign Plan [Member]
Accumulated benefit obligation	37,180	36,809
Fair value of plan assets	10,995	10,046
Projected benefit obligation	39,677	39,635
Fair value of plan assets	$ 10,995	$ 10,046