Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenue:
Trucking revenue	$ 75,937	$ 82,874
Strategic Capacity Solutions revenue	17,595	11,568
Intermodal revenue	4,291	5,208
Base revenue	97,823	99,650
Fuel surcharge revenue	25,850	24,392
Total revenue	123,673	124,042
Operating expenses and costs:
Salaries, wages and employee benefits	35,514	33,100
Fuel and fuel taxes	34,770	34,727
Purchased transportation	26,978	25,379
Depreciation and amortization	11,157	12,614
Operations and maintenance	10,931	9,877
Insurance and claims	4,882	5,864
Operating taxes and licenses	1,507	1,398
Communications and utilities	1,023	985
Gain on disposal of assets, net	(542)	(915)
Other	4,089	4,195
Total operating expenses and costs	130,309	127,224
Operating loss	(6,636)	(3,182)
Other expenses (income):
Interest expense	986	743
Other, net	(75)	(11)
Total other expenses, net	911	732
Loss before income taxes	(7,547)	(3,914)
Income tax benefit	(2,674)	(1,198)
Net loss	$ (4,873)	$ (2,716)
Net loss per share information:
Average shares outstanding (Basic) (in Shares)	10,300	10,298
Basic loss per share (in Dollars per share)	$ (0.47)	$ (0.26)
Average shares outstanding (Diluted) (in Shares)	10,300	10,298
Diluted loss per share (in Dollars per share)	$ (0.47)	$ (0.26)