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. 27, 2021	Nov. 28, 2020
UNITED STATES
Accumulated benefit obligation	$ 17,558	$ 26,241
Fair value of plan assets	0	5,441
Projected benefit obligation	17,558	26,241
Fair value of plan assets	0	5,441
Foreign Plan [Member]
Accumulated benefit obligation	48,912	134,472
Fair value of plan assets	11,350	84,239
Projected benefit obligation	131,174	145,461
Fair value of plan assets	$ 84,626	$ 84,239