Schedule II - Analysis of Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 27, 2021	Nov. 28, 2020	Nov. 30, 2019
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance Beginning of Period		$ 1,211	$ 815	$ 754
Additions Charged to Cost and Expenses		(156)	492	61
Deductions	[1]	(259)	(96)	0
Other		0		0	[2]
Balance End of Period		796	1,211	815
SEC Schedule, 12-09, Allowance, Notes Receivable [Member]
Balance Beginning of Period		359	359	377
Additions Charged to Cost and Expenses		0	0	0
Deductions	[1]	0	0	(18)
Other		0	0	0
Balance End of Period		$ 359	$ 359	$ 359

[1] Deductions are for the purpose for which the reserve was created.

[2] Represents reserves of acquired business at date of acquisition.