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Note 5 - Segment Information - Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Total revenue | $ 220,889 | $ 210,813
Operating income (loss) | 10,509 | (1,454)
Operating Segments [Member] |  |
Total revenue | 220,889 | 210,813
Operating income (loss) | 10,509 | (1,454)
Intersegment Eliminations [Member] |  |
Total revenue | 446 | 2,880
Consolidation, Eliminations [Member] |  |
Total revenue | (446) | (2,880)
Highway Services [Member] | Operating Segments [Member] |  |
Total revenue | 78,481 | 86,161
Operating income (loss) | 6,237 | (1,757)
Highway Services [Member] | Intersegment Eliminations [Member] |  |
Total revenue | 446 | 2,880
Dedicated [Member] | Operating Segments [Member] |  |
Total revenue | 75,446 | 81,788
Operating income (loss) | (1,770) | (1,325)
Dedicated [Member] | Intersegment Eliminations [Member] |  |
Total revenue | 0 | 0
Managed Freight [Member] | Operating Segments [Member] |  |
Total revenue | 51,397 | 30,737
Operating income (loss) | 4,887 | 653
Managed Freight [Member] | Intersegment Eliminations [Member] |  |
Total revenue | 0 | 0
Factoring [Member] | Operating Segments [Member] |  |
Total revenue | 15,565 | 12,127
Operating income (loss) | 1,155 | 975
Factoring [Member] | Intersegment Eliminations [Member] |  |
Total revenue | $ 0 | $ 0

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