Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities:
Net loss	$ (1,589)	$ (2,474)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	11,455	10,915
Provision for doubtful accounts	113	(125)
Deferred income taxes, net		(1,590)
Stock-based compensation	116	(89)
Gain on disposal of assets, net	(343)	(389)
Other	1	25
Changes in operating assets and liabilities:
Accounts receivable	(12,585)	(2,326)
Inventories and prepaid expenses	(1,855)	(889)
Trade accounts payable and accrued expenses	9,447	(549)
Insurance and claims accruals	988	658
Net cash provided by operating activities	5,748	3,167
Investing activities:
Purchases of property and equipment	(2,959)	(2,791)
Proceeds from sale of property and equipment	3,853	2,160
Change in other assets, net	7	(7)
Net cash provided by (used in) investing activities	901	(638)
Financing activities
Borrowings under long-term debt	22,895	31,128
Restricted stock vesting and stock option exercise	(123)
Principal payments on long-term debt	(21,795)	(26,704)
Principal payments on capitalized lease obligations	(5,194)	(7,534)
Principal payments on note payable	(339)	(448)
Net decrease in bank drafts payable	(2,101)	(401)
Net cash used in financing activities	(6,657)	(3,959)
Decrease in cash	(8)	(1,430)
Cash:
Beginning of period	14	1,742
End of period	6	312
Cash paid during the period for:
Interest	857	935
Income taxes	163	46
Supplemental disclosure of non-cash investing activities:
Liability incurred for leases on revenue equipment		10,275
Accounts Payable [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid	7,296	7,648
Long-term Debt [Member]
Supplemental disclosure of non-cash investing activities:
Capital Expenditures Incurred but Not yet Paid		$ 295