The aggregate expected value at the end of their useful life of a major finite-lived intangible asset class acquired during the period either individually or as part of a group of assets (in either an asset acquisition or business combination). A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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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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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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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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Note 12 - Goodwill and Other Assets (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jul. 03, 2018
Amortization of Intangible Assets, Total	$ 3,500	$ 3,900
Goodwill, Ending Balance	42,518		$ 42,518
Landair Holdings Inc [Member]
Business Acquisition, Percentage of Voting Interests Acquired				100.00%
Landair Holdings Inc [Member] \| Trade Names [Member]
Acquired Finite-lived Intangible Asset, Residual Value	$ 500