Note 15 - Incentive Plans - Fair Value of Plan Assets, Defined Benefit Plan (Details) $ in Thousands	Aug. 03, 2021 USD ($)
Fair value of plan assets	$ 74,025
Asset allocation	100.00%
Defined Benefit Plan, Cash [Member]
Fair value of plan assets	$ 44,563
Asset allocation	60.00%
Large Company Funds [Member]
Fair value of plan assets	$ 11,946
Asset allocation	16.00%
Fixed Income Funds [Member]
Fair value of plan assets	$ 7,467
Asset allocation	10.00%
International Funds [Member]
Fair value of plan assets	$ 3,247
Asset allocation	5.00%
Growth Funds [Member]
Fair value of plan assets	$ 2,364
Asset allocation	3.00%
Small Company Funds [Member]
Fair value of plan assets	$ 2,225
Asset allocation	3.00%
Mid Company Funds [Member]
Fair value of plan assets	$ 2,213
Asset allocation	3.00%