Note 4 - Segment Reporting (Tables)

6 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

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

	Trucking			SCS and Intermodal
Three Months Ended
June 30, 2013		73.1	%		26.9	%
June 30, 2012		69.4	%		30.6	%
Six Months Ended
June 30, 2013		74.5	%		25.5	%
June 30, 2012		73.4	%		26.6	%

Base Revenue And Fuel Surcharge Revenue By Segments [Table Text Block]

	(in thousands)
	Revenue
	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Base revenue
Trucking	$	81,441		$	71,846			161,244			147,782
SCS and Intermodal		31,434			37,974			58,222			64,698
Eliminations		(1,413	)		(6,300	)		(3,116	)		(11,138	)
Total base revenue		111,462			103,520			216,350			201,342
Fuel surcharge revenue
Trucking		23,392			20,964			45,615			41,995
SCS and Intermodal		5,260			6,921			10,638			12,250
Eliminations		(376	)		(1,836	)		(837	)		(2,345	)
Total fuel surcharge revenue		28,276			26,049			55,416			51,900
Total revenue	$	139,738		$	129,569		$	271,766		$	253,242

Operating Income (Loss) By Reporting Segments [Table Text Block]

	(in thousands)
	Operating income (loss)
	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Operating (loss) income
Trucking	$	(3,108	)	$	(6,324	)	$	(7,086	)	$	(14,275	)
SCS and Intermodal		2,163			1,995			3,315			3,310
Operating loss	$	(945	)	$	(4,329	)	$	(3,771	)	$	(10,965	)

Assets By Reporting Segments [Table Text Block]

	(in thousands)
	Total Assets
	June 30, 2013		December 31, 2012
Total Assets
Trucking	$	222,518	$	218,145
Corporate and Other		114,767		113,349
Total Assets	$	337,285	$	331,494

Amortization And Depreciation By Reporting Segments [Table Text Block]

	(in thousands)
	Depreciation and Amortization
	Three Months Ended June 30,				Six Months Ended June 30,
	2013		2012		2013		2012
Depreciation and Amortization
Trucking	$	10,198	$	10,466	$	20,452	$	20,873
SCS and Intermodal		62		134		141		256
Corporate and Other		592		578		1,174		1,206
Total Depreciation and Amortization	$	10,852	$	11,178	$	21,767	$	22,335