v3.26.3
Note 4 - Segment Information - Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Revenue $ 353,894 $ 296,889 $ 993,928 $ 869,098
Salaries, wages, and related expenses 115,501 109,745 334,903 323,845
Fuel expense(1) 38,259 29,506 104,406 85,663
Operations and maintenance 20,235 19,352 56,915 52,168
Revenue equipment rentals and purchased transportation 113,412 72,908 301,354 206,504
Operating taxes and licenses 3,089 3,304 9,104 10,326
Insurance and claims 9,791 14,179 40,575 46,769
Communications and utilities 2,152 1,631 6,063 4,580
General supplies and expenses 16,448 15,872 43,046 44,124
Gain on disposition of property and equipment, net (945) (487) (308) 134
Segment operating expenses 341,400 288,963 966,311 841,982
Subtotal operating income 12,494 7,926 27,617 27,116
Other (2) (11,549) (6,763) (31,088) (20,564)
Interest expense, net (3,854) (3,468) (10,721) (8,795)
Income from equity method investment 5,650 3,578 14,602 11,622
Income before income taxes 14,290 8,036 31,498 29,943
Cargo and Freight [Member]        
Revenue 315,050 268,840 891,668 788,591
Fuel Surcharge [Member]        
Revenue 38,844 28,049 102,260 80,507
Operating Segments [Member]        
Revenue 353,177 296,836 991,915 869,045
Segment operating expenses 329,851 282,200 935,223 821,418
Subtotal operating income 24,043 14,689 58,705 47,680
Operating Segments [Member] | Cargo and Freight [Member]        
Revenue 314,333 268,787 889,655 788,538
Operating Segments [Member] | Fuel Surcharge [Member]        
Revenue [1] 38,844 28,049 102,260 80,507
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]        
Revenue 717 53 2,013 53
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]        
Interest expense, net   (3,468)    
Expedited [Member]        
Gain on disposition of property and equipment, net       0
Expedited [Member] | Operating Segments [Member]        
Revenue 89,473 94,632 267,564 286,625
Salaries, wages, and related expenses 26,960 30,756 82,616 94,398
Fuel expense(1) 17,537 14,584 50,235 43,854
Operations and maintenance 8,747 10,099 26,972 31,263
Revenue equipment rentals and purchased transportation 13,482 17,742 43,389 51,439
Operating taxes and licenses 220 356 781 1,033
Insurance and claims 5,540 6,647 18,503 19,964
Communications and utilities 1 0 2 1
General supplies and expenses 510 235 1,317 704
Depreciation and amortization 0 1 1 4
Gain on disposition of property and equipment, net 0   0  
Total allocated overhead 8,630 9,133 24,695 25,830
Segment operating expenses 81,627 89,553 248,511 268,490
Subtotal operating income 7,846 5,079 19,053 18,135
Expedited [Member] | Operating Segments [Member] | Cargo and Freight [Member]        
Revenue 70,555 80,184 216,246 243,662
Expedited [Member] | Operating Segments [Member] | Fuel Surcharge [Member]        
Revenue [1] 18,918 14,448 51,318 42,963
Dedicated [Member]        
Gain on disposition of property and equipment, net       225
Dedicated [Member] | Operating Segments [Member]        
Revenue 115,124 105,020 330,913 300,906
Salaries, wages, and related expenses 45,794 43,760 134,786 125,160
Fuel expense(1) 20,866 14,690 54,122 41,328
Operations and maintenance 12,295 12,667 35,106 34,581
Revenue equipment rentals and purchased transportation 7,149 8,453 21,303 26,027
Operating taxes and licenses 743 667 2,205 1,927
Insurance and claims 5,679 5,057 16,878 15,221
Communications and utilities 220 196 668 583
General supplies and expenses 441 482 1,235 1,616
Depreciation and amortization 5,311 4,369 15,110 12,658
Gain on disposition of property and equipment, net (97) (63) (84)  
Total allocated overhead 10,307 10,643 29,803 29,308
Segment operating expenses 108,708 100,921 311,132 288,634
Subtotal operating income 6,416 4,099 19,781 12,272
Dedicated [Member] | Operating Segments [Member] | Cargo and Freight [Member]        
Revenue 95,405 91,581 280,489 263,827
Dedicated [Member] | Operating Segments [Member] | Fuel Surcharge [Member]        
Revenue [1] 19,719 13,439 50,424 37,079
Managed Freight [Member]        
Gain on disposition of property and equipment, net       0
Managed Freight [Member] | Operating Segments [Member]        
Revenue 121,635 72,220 311,908 206,620
Salaries, wages, and related expenses 4,301 2,758 11,404 7,880
Fuel expense(1) 0 0 0 0
Operations and maintenance 966 689 2,232 1,195
Revenue equipment rentals and purchased transportation 104,284 62,545 272,456 176,734
Operating taxes and licenses 33 18 78 84
Insurance and claims 634 205 1,808 361
Communications and utilities 23 7 92 25
General supplies and expenses 1,191 769 3,585 2,444
Depreciation and amortization 102 22 304 65
Gain on disposition of property and equipment, net 0 0 0  
Total allocated overhead 2,734 2,247 7,140 6,870
Segment operating expenses 114,268 69,260 299,099 195,658
Subtotal operating income 7,367 2,960 12,809 10,962
Managed Freight [Member] | Operating Segments [Member] | Cargo and Freight [Member]        
Revenue 121,635 72,220 311,908 206,620
Managed Freight [Member] | Operating Segments [Member] | Fuel Surcharge [Member]        
Revenue [1] 0 0 0 0
Warehousing [Member]        
Gain on disposition of property and equipment, net       0
Warehousing [Member] | Operating Segments [Member]        
Revenue 26,945 24,964 81,530 74,894
Salaries, wages, and related expenses 13,669 12,044 42,231 35,822
Fuel expense(1) 267 167 730 498
Operations and maintenance 1,904 1,471 5,585 4,154
Revenue equipment rentals and purchased transportation 1,240 1,052 3,546 3,302
Operating taxes and licenses 426 383 1,295 1,732
Insurance and claims 239 220 728 666
Communications and utilities 301 249 972 716
General supplies and expenses 3,840 4,161 11,850 13,308
Depreciation and amortization 437 461 1,285 1,419
Gain on disposition of property and equipment, net 0 0 0  
Total allocated overhead 2,925 2,258 8,259 7,019
Segment operating expenses 25,248 22,466 76,481 68,636
Subtotal operating income 1,697 2,498 5,049 6,258
Warehousing [Member] | Operating Segments [Member] | Cargo and Freight [Member]        
Revenue 26,738 24,802 81,012 74,429
Warehousing [Member] | Operating Segments [Member] | Fuel Surcharge [Member]        
Revenue [1] $ 207 $ 162 $ 518 $ 465
[1] The CODM does not receive fuel surcharge revenue and fuel expense individually, but is provided with fuel expense less fuel surcharge revenue (other than the fuel surcharge revenue we reimburse to independent contractors and other third parties which is included in purchased transportation), which we refer to as net fuel expense. The CODM uses net fuel expense to measure the effectiveness of our fuel surcharge program.