Note 10 - Pension and Postretirement Benefits - Asset Allocation (Details)	Dec. 29, 2025	Nov. 29, 2025	Nov. 30, 2024
Equity Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		55.00%
Cash		55.00%
Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation		45.00%
Cash		45.00%
Fixed Income Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation		45.00%
Cash		45.00%
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	100.00%
Percentage of Plan Assets at Year End	100.00%		100.00%
Cash	100.00%
Cash	100.00%		100.00%
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	100.00%
Percentage of Plan Assets at Year End	100.00%		100.00%
Cash	100.00%
Cash	100.00%		100.00%
Pension Plan [Member] | Equity Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	55.00%
Percentage of Plan Assets at Year End	51.50%		52.40%
Cash	55.00%
Cash	51.50%		52.40%
Pension Plan [Member] | Equity Funds [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	23.00%
Percentage of Plan Assets at Year End	24.20%		23.00%
Cash	23.00%
Cash	24.20%		23.00%
Pension Plan [Member] | Fixed Income Funds [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	45.00%
Percentage of Plan Assets at Year End	46.70%		46.10%
Cash	45.00%
Cash	46.70%		46.10%
Pension Plan [Member] | Fixed Income Funds [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	76.50%
Percentage of Plan Assets at Year End	74.60%		76.50%
Cash	76.50%
Cash	74.60%		76.50%
Pension Plan [Member] | Insurance [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	0.00%		0.00%
Cash	0.00%
Cash	0.00%		0.00%
Pension Plan [Member] | Insurance [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	0.50%
Percentage of Plan Assets at Year End	0.50%		0.00%
Cash	0.50%
Cash	0.50%		0.00%
Pension Plan [Member] | Cash [Member] | UNITED STATES
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	1.80%		1.50%
Cash	0.00%
Cash	1.80%		1.50%
Pension Plan [Member] | Cash [Member] | Foreign Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	0.70%		0.50%
Cash	0.00%
Cash	0.70%		0.50%
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan, Target Plan Asset Allocation	100.00%
Percentage of Plan Assets at Year End	100.00%		100.00%
Cash	100.00%
Cash	100.00%		100.00%
Other Postretirement Benefits Plan [Member] | Equity Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	0.00%		0.00%
Cash	0.00%
Cash	0.00%		0.00%
Other Postretirement Benefits Plan [Member] | Fixed Income Funds [Member]
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	0.00%		0.00%
Cash	0.00%
Cash	0.00%		0.00%
Other Postretirement Benefits Plan [Member] | Insurance [Member]
Defined Benefit Plan, Target Plan Asset Allocation	100.00%
Percentage of Plan Assets at Year End	98.30%		98.00%
Cash	100.00%
Cash	98.30%		98.00%
Other Postretirement Benefits Plan [Member] | Cash [Member]
Defined Benefit Plan, Target Plan Asset Allocation	0.00%
Percentage of Plan Assets at Year End	1.70%		2.00%
Cash	0.00%
Cash	1.70%		2.00%