Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Operating activities
Net loss	$ (4,873)	$ (2,716)
Depreciation and amortization	11,157	12,614
Provision for doubtful accounts	62	(7)
Deferred income taxes	(2,674)	(1,190)
Stock-based compensation	8	19
Gain on disposal of assets, net	(542)	(915)
Recognition of deferred gain	(2)	(1)
Changes in operating assets and liabilities:
Accounts receivable	(5,033)	(8,950)
Inventories and prepaid expenses	(2,465)	(2,428)
Trade accounts payable and accrued expenses	4,572	7,775
Insurance and claims accruals	760	516
Net cash provided by operating activities	970	4,717
Investing activities
Purchases of property and equipment	(341)	(15,085)
Proceeds from sale of property and equipment	5,860	6,757
Change in other assets	(42)	(11)
Net cash provided by (used in) investing activities	5,477	(8,339)
Financing activities
Borrowings under long-term debt	51,557	21,638
Principal payments on long-term debt	(44,857)	(14,852)
Principal payments on capitalized lease obligations	(11,100)	(2,899)
Principal payments on note payable	(455)	(334)
Net increase (decrease) in bank drafts payable	54	(15)
Proceeds from exercise of stock options	0	1
Net cash (used in) provided by financing activities	(4,801)	3,539
Increase (decrease) in cash	1,646	(83)
Cash:
Beginning of period	2,659	2,726
End of period	4,305	2,643
Cash paid during the period for:
Interest	995	730
Supplemental disclosure of non-cash investing activities:
Liability incurred for leases on revenue equipment	10,686	8,506
Purchases of revenue equipment included in accounts payable	$ 0	$ 2,247