Note 12 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
May 29, 2021	Nov. 28, 2020
Accrued Environmental Loss Contingencies, Noncurrent	$ 7,965	$ 8,099
Facility in Simpsonville, South Carolina [Member]
Operating Leases, Rent Expense, Total	$ 3,585	$ 3,703

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable after twelve months or beyond the next operating cycle if longer.

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