Note 6 - Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 27, 2021	Nov. 28, 2020
Operating cash flows from operating leases		$ 15,251	$ 13,216
Operating cash flows from finance leases1	[1]	110
Financing cash flows from finance leases1	[1]	546
Operating leases		20,030	13,166
Finance leases1	[1]	$ 7,630

[1] In fiscal year 2020, finance leases were not material for disclosure.