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Note 5 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Revenue | $ 278,763 | $ 266,851
Operating income (loss) | 4,335 | 17,632
Operating Segments [Member] |  |
Revenue | 278,763 | 266,851
Operating income (loss) | 4,335 | 17,632
Intersegment Eliminations [Member] |  |
Revenue | 642 | 4,462
Consolidation, Eliminations [Member] |  |
Revenue | (642) | (4,462)
Highway Services [Member] | Operating Segments [Member] |  |
Revenue | 105,471 | 100,896
Operating income (loss) | 4,784 | 9,276
Highway Services [Member] | Intersegment Eliminations [Member] |  |
Revenue | 642 | 4,462
Dedicated [Member] | Operating Segments [Member] |  |
Revenue | 84,482 | 80,244
Operating income (loss) | (4,697) | 7,147
Dedicated [Member] | Intersegment Eliminations [Member] |  |
Revenue | 0 | 0
Managed Freight [Member] | Operating Segments [Member] |  |
Revenue | 62,917 | 60,874
Operating income (loss) | 2,269 | 1,218
Managed Freight [Member] | Intersegment Eliminations [Member] |  |
Revenue | 0 | 0
Factoring [Member] | Operating Segments [Member] |  |
Revenue | 25,893 | 24,837
Operating income (loss) | 1,979 | (9)
Factoring [Member] | Intersegment Eliminations [Member] |  |
Revenue | $ 0 | $ 0

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