Note 5 - Goodwill and Other Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 28, 2021	Aug. 29, 2020	Aug. 28, 2021	Aug. 29, 2020	Nov. 28, 2020
Amortization of Intangible Assets, Total	$ 17,815	$ 17,485	$ 53,464	$ 52,943
Indefinite Lived Trademarks and Trade Names	$ 514		$ 514		$ 519

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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