Note 6 - Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands		Nov. 27, 2021	Nov. 28, 2020
Operating lease right-of-use assets		$ 32,744	$ 28,445
Current operating lease liabilities		8,921
Noncurrent operating lease liabilities		24,061
Present value of future minimum payments		32,982	28,204
Current obligations of finance leases1		1,109
Finance leases, net of current obligations1		7,548
Present value of future minimum payments, Finance Leases		8,657
Other Assets [Member]
Operating lease right-of-use assets		32,744	28,445
Other Accrued Expenses [Member]
Current operating lease liabilities		8,921	8,706
Current obligations of finance leases1	[1]	1,109
Other Liabilities [Member]
Noncurrent operating lease liabilities		24,061	19,498
Finance leases, net of current obligations1	[1]	7,548
Property, Plant and Equipment, Net [Member]
Equipment right-of-use assets1	[1]	$ 9,455

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