Note 5 - Accounts Receivable - Activity in Allowance for Doubtful Accounts (Details) $ in Thousands	6 Months Ended
	May 27, 2023 USD ($)
Balance at November 26, 2022	$ 1,261
Additions charged to expense	137
Write-offs against allowance	(887)
Balance at February 25, 2023	$ 511