Note 4 - Segment Reporting (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

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

	Percent of Total Base Revenue
	Trucking			SCS
Three Months Ended
September 30, 2013		71.8	%		28.2	%
September 30, 2012		71.7	%		28.3	%
Nine Months Ended
September 30, 2013		73.6	%		26.4	%
September 30, 2012		72.8	%		27.2	%

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

	(in thousands)
	Revenue
	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2013			2012			2013			2012
Base revenue
Trucking	$	81,804		$	71,951		$	243,005		$	219,733
SCS		33,416			34,509			91,638			99,207
Eliminations		(1,364	)		(6,136	)		(4,437	)		(17,273	)
Total base revenue		113,856			100,324			330,206			301,667
Fuel surcharge revenue
Trucking		23,140			20,204			68,756			62,198
SCS		5,234			5,907			15,872			18,157
Eliminations		(408	)		(2,019	)		(1,247	)		(4,365	)
Total fuel surcharge revenue		27,966			24,092			83,381			75,990
Total revenue	$	141,822		$	124,416		$	413,587		$	377,657

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

	(in thousands)
	Operating loss
	Three Months Ended September 30,						Nine Months Ended September 30,
	2013			2012			2013			2012
Operating loss
Trucking	$	(2,968	)	$	(10,111	)	$	(10,054	)	$	(24,391	)
SCS		2,764			1,586			6,079			4,901
Operating loss	$	(204	)	$	(8,525	)	$	(3,975	)	$	(19,490	)

Assets By Reporting Segments [Table Text Block]

	(in thousands) Total Assets
	September 30, 2013		December 31, 2012
Total Assets
Trucking	$	216,190	$	218,145
Corporate and Other		116,578		113,349
Total Assets	$	332,768	$	331,494

Amortization And Depreciation By Reporting Segments [Table Text Block]

	(in thousands)
	Depreciation and Amortization
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2013		2012		2013		2012
Depreciation and Amortization
Trucking	$	10,995	$	10,530	$	31,447	$	31,403
SCS		50		111		191		367
Corporate and Other		588		596		1,761		1,801
Total Depreciation and Amortization	$	11,633	$	11,237	$	33,399	$	33,571