Schedule II - Analysis of Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 30, 2019		Nov. 24, 2018	Nov. 25, 2017
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Balance Beginning of Period		$ 754		$ 617	$ 799
Additions Charged to Cost and Expenses		61		339	(59)
Deductions	[1]	0		(252)	(123)
Other		0	[2]	50	0
Balance End of Period		815		754	617
SEC Schedule, 12-09, Allowance, Notes Receivable [Member]
Balance Beginning of Period		377		1,454	1,454
Additions Charged to Cost and Expenses		0		0	0
Deductions	[1]	(18)		(1,077)	0
Other		0		0	0
Balance End of Period		$ 359		$ 377	$ 1,454

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

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