Note 4 - Segment Reporting (Details) - Operating Income (Loss) by Reporting Segments (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Operating loss
Operating Income (Loss)	$ (204)	$ (8,525)	$ (3,975)	$ (19,490)
Trucking [Member]
Operating loss
Operating Income (Loss)	(2,968)	(10,111)	(10,054)	(24,391)
SCS and Intermodal [Member]
Operating loss
Operating Income (Loss)	$ 2,764	$ 1,586	$ 6,079	$ 4,901