Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Operating activities
Net loss	$ (14,431,000)	$ (6,423,000)
Depreciation and amortization	33,571,000	37,491,000
Provision for doubtful accounts	81,000	81,000
Deferred income taxes	(7,947,000)	(2,629,000)
Excess tax benefit from stock options and restricted stock		(6,000)
Stock-based compensation	166,000	45,000
Gain on disposal of assets, net	(1,756,000)	(2,904,000)
Recognition of deferred gain	(6,000)	(5,000)
Changes in operating assets and liabilities:
Accounts receivable	(6,874,000)	(19,389,000)
Inventories and prepaid expenses	(161,000)	(1,163,000)
Trade accounts payable and accrued expenses	5,766,000	6,270,000
Insurance and claims accruals	4,265,000	721,000
Net cash provided by operating activities	12,674,000	12,089,000
Purchases of property and equipment	(19,235,000)	(39,897,000)
Proceeds from sale of property and equipment	15,601,000	17,588,000
Change in other assets	(34,000)	(54,000)
Net cash used in investing activities	(3,668,000)	(22,363,000)
Borrowings under long-term debt	164,738,000	93,822,000
Principal payments on long-term debt	(154,486,000)	(73,724,000)
Principal payments on capitalized lease obligations	(18,590,000)	(11,703,000)
Principal payments on note payable	(1,370,000)	(1,009,000)
Net (decrease) increase in bank drafts payable	(1,309,000)	1,054,000
Proceeds from exercise of stock options		7,000
Excess tax benefit from stock options and restricted stock		6,000
Net cash (used in) provided by financing activities	(11,017,000)	8,453,000
Decrease in cash	(2,011,000)	(1,821,000)
Cash:
Beginning of period	2,659,000	2,726,000
End of period	648,000	905,000
Cash paid during the period for:
Interest	3,171,000	2,448,000
Supplemental disclosure of non-cash investing activities:
Liability incurred for leases on revenue equipment	24,934,000	21,235,000
Accounts Payable [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid	4,305,000	1,063,000
Long-term Debt [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid	$ 233,000