Note 5 - Segment Reporting (Detail) - Operating Income (Loss) by Reporting Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Operating (loss) income
Trucking	$ (6,324)	$ 37	$ (14,280)	$ (4,080)
SCS	2,528	2,273	4,072	3,606
Intermodal	(533)	(98)	(757)	(496)
Operating (loss) income	$ (4,329)	$ 2,212	$ (10,965)	$ (970)