Note 4 - Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2014

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Percent of Total Base Revenue
	Trucking			SCS
Three Months Ended
June 30, 2014		66.6	%		33.4	%
June 30, 2013		73.1	%		26.9	%
Six Months Ended
June 30, 2014		67.4	%		32.6	%
June 30, 2013		74.5	%		25.5	%

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

	(in thousands)
	Revenue
	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2014			2013			2014			2013
Base Revenue
Trucking	$	83,353		$	81,441		$	163,689		$	161,244
SCS		43,918			31,434			83,323			58,222
Eliminations		(2,302	)		(1,413	)		(4,432	)		(3,116	)
Total base revenue		124,969			111,462			242,580			216,350
Fuel Surcharge Revenue
Trucking		22,957			23,392			45,535			45,615
SCS		5,978			5,260			11,825			10,638
Eliminations		(606	)		(376	)		(1,153	)		(837	)
Total fuel surcharge revenue		28,329			28,276			56,207			55,416
Total revenue	$	153,298		$	139,738		$	298,787		$	271,766

	(in thousands)
	Operating Income (Loss)
	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2014			2013			2014			2013
Operating Income (Loss)
Trucking	$	(1,734	)	$	(3,108	)	$	(7,855	)	$	(7,086	)
SCS		5,991			2,163			11,069			3,315
Operating income (loss)	$	4,257		$	(945	)	$	3,214		$	(3,771	)

	(in thousands)
	Depreciation and Amortization
	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
Depreciation and Amortization
Trucking	$	10,567	$	10,198	$	21,432	$	20,452
SCS		44		62		92		141
Corporate and Other		537		592		1,079		1,174
Total depreciation and amortization	$	11,148	$	10,852	$	22,603	$	21,767

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	(in thousands)
	Total Assets
	June 30,		December 31,
	2014		2013
Total Assets
Trucking	$	197,184	$	200,168
Corporate and Other		129,371		114,778
Total assets	$	326,555	$	314,946