| Intangible Asset, Finite-Lived [Table Text Block] |
| (in thousands) | | September 30, 2026 | |
| | | Gross intangible assets | | | Accumulated amortization | | | Net intangible assets | | | Remaining life (months) | |
| Trade name: | | | | | | | | | | | | | | | | |
| Dedicated | | $ | 4,502 | | | $ | (2,847 | ) | | $ | 1,655 | | | | | |
| Managed Freight | | | 1,089 | | | | (941 | ) | | | 148 | | | | | |
| Warehousing | | | 999 | | | | (885 | ) | | | 114 | | | | | |
| Total trade name | | | 6,590 | | | | (4,673 | ) | | | 1,917 | | | | 78 | |
| Non-compete agreement: | | | | | | | | | | | | | | | | |
| Dedicated | | | 4,670 | | | | (3,989 | ) | | | 681 | | | | | |
| Managed Freight | | | 630 | | | | (355 | ) | | | 275 | | | | | |
| Total non-compete agreement | | | 5,300 | | | | (4,344 | ) | | | 956 | | | | 13 | |
| Customer relationships: | | | | | | | | | | | | | | | | |
| Dedicated | | | 71,374 | | | | (20,713 | ) | | | 50,661 | | | | | |
| Managed Freight | | | 22,112 | | | | (4,968 | ) | | | 17,144 | | | | | |
| Warehousing | | | 12,436 | | | | (8,550 | ) | | | 3,886 | | | | | |
| Total customer relationships: | | | 105,922 | | | | (34,231 | ) | | | 71,691 | | | | 128 | |
| Credentialing: | | | | | | | | | | | | | | | | |
| Expedited | | | 32,000 | | | | (9,956 | ) | | | 22,044 | | | | | |
| Total credentialing | | | 32,000 | | | | (9,956 | ) | | | 22,044 | | | | 124 | |
| Total other intangible assets | | $ | 149,812 | | | $ | (53,204 | ) | | $ | 96,608 | | | | 124 | |
| (in thousands) | | December 31, 2025 | |
| | | Gross intangible assets | | | Accumulated amortization | | | Net intangible assets | | | Remaining life (months) | |
| Trade name: | | | | | | | | | | | | | | | | |
| Dedicated | | $ | 4,502 | | | $ | (2,689 | ) | | $ | 1,813 | | | | | |
| Managed Freight | | | 1,089 | | | | (927 | ) | | | 162 | | | | | |
| Warehousing | | | 999 | | | | (885 | ) | | | 114 | | | | | |
| Total trade name | | | 6,590 | | | | (4,501 | ) | | | 2,089 | | | | 86 | |
| Non-compete agreement: | | | | | | | | | | | | | | | | |
| Dedicated | | | 4,670 | | | | (3,113 | ) | | | 1,557 | | | | | |
| Managed Freight | | | 630 | | | | (238 | ) | | | 392 | | | | | |
| Total non-compete agreement | | | 5,300 | | | | (3,351 | ) | | | 1,949 | | | | 15 | |
| Customer relationships: | | | | | | | | | | | | | | | | |
| Dedicated | | | 71,374 | | | | (16,959 | ) | | | 54,415 | | | | | |
| Managed Freight | | | 22,112 | | | | (3,264 | ) | | | 18,848 | | | | | |
| Warehousing | | | 12,436 | | | | (7,772 | ) | | | 4,664 | | | | | |
| Total customer relationships: | | | 105,922 | | | | (27,995 | ) | | | 77,927 | | | | 131 | |
| Credentialing: | | | | | | | | | | | | | | | | |
| Expedited | | | 32,000 | | | | (8,356 | ) | | | 23,644 | | | | | |
| Total credentialing | | | 32,000 | | | | (8,356 | ) | | | 23,644 | | | | 133 | |
| Total other intangible assets | | $ | 149,812 | | | $ | (44,203 | ) | | $ | 105,609 | | | | 128 | |
|
| Goodwill [Table Text Block] |
| (in thousands) | | | | | | | | | | | | | | | | | | | | |
| | | Expedited | | | Dedicated | | | Managed Freight | | | Warehousing | | | Total | |
| Balance at December 31, 2025 | | $ | 15,699 | | | $ | 21,877 | | | $ | 21,151 | | | $ | 21,750 | | | $ | 80,477 | |
| Post-acquisition goodwill adjustments | | | - | | | | - | | | | 589 | | | | - | | | | 589 | |
| Balance at September 30, 2026 | | $ | 15,699 | | | $ | 21,877 | | | $ | 21,740 | | | $ | 21,750 | | | $ | 81,066 | |
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