Note 5 - Goodwill and Other Intangible Assets - Goodwill Balance (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 28, 2020	Nov. 30, 2019
Balance at beginning of year	$ 1,281,808	$ 1,305,171
Foreign currency translation effect	29,878	(8,516)
Balance at end of year	1,312,003	1,281,808
Ramapo [Member]
Acquisition	(746)	910
DHM [Member]
Acquisition	1,063	0
Dalton Holdings [Member]
Acquisition	$ 0	$ (15,757)

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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