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Note 13 - Goodwill and Other Assets (Details Textual) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Amortization of Intangible Assets $ 3,200 $ 3,500  
Goodwill, Ending Balance 58,217   $ 42,518
Trade Names [Member] | Landair Holdings Inc [Member]      
Acquired Finite-lived Intangible Asset, Residual Value $ 500