Note 4 - Segment Reporting (Detail) - Operating Income (Loss) by Reporting Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating (loss) income
Operating Income (Loss) by Segments	$ (2,827)	$ (6,636)
Trucking [Member]
Operating (loss) income
Operating Income (Loss) by Segments	(3,978)	(7,956)
SCS [Member]
Operating (loss) income
Operating Income (Loss) by Segments	1,282	1,544
Intermodal [Member]
Operating (loss) income
Operating Income (Loss) by Segments	$ (131)	$ (224)