Note 6 - Goodwill and Other Intangible Assets - Amortization Expense With Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 28, 2021	Aug. 29, 2020	Aug. 28, 2021	Aug. 29, 2020
Intangible asset amortization expense	$ 95	$ 95	$ 284	$ 284

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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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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