Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Operating activities:
Net loss	$ (867)	$ (3,872)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	22,603	21,767
Provision for doubtful accounts	423	(90)
Deferred income taxes, net	(1,321)	(1,978)
Stock-based compensation	219	44
Gain on disposal of assets, net	(522)	(819)
Other	(4)	16
Changes in operating assets and liabilities:
Accounts receivable	(13,734)	(2,175)
Inventories and prepaid expenses	(1,095)	(387)
Trade accounts payable and accrued expenses	11,037	3,281
Insurance and claims accruals	1,779	3,045
Net cash provided by operating activities	18,518	18,832
Investing activities:
Purchases of property and equipment	(22,534)	(7,209)
Proceeds from sale of property and equipment	8,881	5,149
Change in other assets, net	15	32
Net cash used in investing activities	(13,638)	(2,028)
Financing activities:
Borrowings under long-term debt	43,817	126,956
Restricted stock vesting and stock option exercise	(126)
Principal payments on long-term debt	(37,239)	(130,147)
Principal payments on capitalized lease obligations	(9,706)	(10,536)
Principal payments on note payable	(681)	(899)
Net increase in bank drafts payable	(920)	(3,053)
Net cash used in financing activities	(4,855)	(17,679)
Increase (Decrease) in cash	25	(875)
Cash:
Beginning of period	14	1,742
End of period	39	867
Cash paid during the period for:
Interest	1,710	1,905
Income taxes	324	48
Supplemental disclosure of non-cash investing activities:
Liability incurred for leases on revenue equipment		21,989
Accounts Payable [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid	5,650	1,359
Long-term Debt [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid	$ 4	$ 295