Note 16 - Segment Information (Tables)

12 Months Ended

Dec. 31, 2016

Notes Tables

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

	(in thousands)
Year Ended December 31, 2016	Truckload		Other			Unallocated Corporate Overhead			Consolidated
Revenue	$	601,226	$	73,602		$	-		$	674,828
Intersegment revenue		-		(4,177	)		-			(4,177	)
Operating income (loss)		37,031		7,631			(12,215	)		32,447
Depreciation and amortization (1)		71,173		22			1,261			72,456
Total assets		548,882		31,289			40,367			620,538
Capital expenditures, net (2)		57,242		43			1,767			59,052
Year Ended December 31, 2015
Revenue	$	655,918	$	71,057		$	-		$	726,975
Intersegment revenue		-		(2,735	)		-			(2,735	)
Operating income (loss)		74,107		5,768			(12,093	)		67,782
Depreciation and amortization (1)		60,138		13			1,233			61,384
Total assets		580,506		26,315			39,896			646,717
Capital expenditures, net (2)		147,896		29			1,069			148,994
Year Ended December 31, 2014
Revenue	$	663,001	$	59,796		$	-		$	722,797
Intersegment revenue		-		(3,817	)		-			(3,817	)
Operating income (loss)		54,151		3,894			(18,399	)		39,646
Depreciation and amortization (1)		45,669		59			656			46,384
Total assets		463,900		27,338			48,066			539,304
Capital expenditures net (2)		87,871		14			1,570			89,455