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. 30, 2024	Dec. 02, 2023
UNITED STATES
Accumulated benefit obligation	$ 12,423	$ 12,329
Fair value of plan assets	0	0
Projected benefit obligation	12,423	12,329
Fair value of plan assets	0	0
Foreign Plan [Member]
Accumulated benefit obligation	36,809	35,034
Fair value of plan assets	10,046	9,700
Projected benefit obligation	39,635	37,510
Fair value of plan assets	$ 10,046	$ 9,700