Note 3 - Revenue and Business Segments (Tables)

12 Months Ended

Dec. 31, 2018

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

(Dollars in thousands)	201 8		2017		2016
Operating revenue:
Truckload revenue, net of fuel surcharge revenue	$	322,324	$	336,596	$	339,967
Truckload fuel surcharge revenue		53,016		43,614		35,884
Total Truckload revenue		375,340		380,210		375,851
Dedicated revenue, net of fuel surcharge revenue		187,137		153,691		147,007
Dedicated fuel surcharge revenue		36,715		13,190		10,363
Total Dedicated revenue		223,852		166,881		157,370
Intermodal revenue, net of fuel surcharge revenue		85,572		70,282		64,508
Intermodal fuel surcharge revenue		16,453		10,339		6,982
Total Intermodal revenue		102,025		80,621		71,490
Brokerage revenue		86,377		70,408		66,433
Total operating revenue	$	787,594	$	698,120	$	671,144
Operating income:
Truckload	$	35,067	$	26,326	$	27,438
Dedicated		18,589		17,074		19,550
Intermodal		11,150		8,303		7,131
Brokerage		5,542		5,159		4,184
Total operating income	$	70,348	$	56,862	$	58,303