Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash	$ 6	$ 14
Accounts receivable:
Trade, less allowance for doubtful accounts of $684 in 2014 and $610 in 2013	76,504	64,682
Other	4,114	3,463
Inventories	1,506	1,425
Deferred income taxes	3,511	2,787
Prepaid expenses and other current assets	17,837	16,064
Total current assets	103,478	88,435
Property and equipment:
Land and structures	31,528	31,502
Revenue equipment	353,930	353,587
Service, office and other equipment	15,760	15,613
Property and equipment, at cost	401,218	400,702
Accumulated depreciation and amortization	(182,064)	(176,506)
Property and equipment, net	219,154	224,196
Note receivable	1,946	1,953
Other assets	360	362
Total assets	324,938	314,946
Current liabilities:
Bank drafts payable	1,244	3,345
Trade accounts payable	33,347	17,674
Current portion of insurance and claims accruals	9,377	9,444
Accrued expenses	9,794	8,732
Note payable	684	1,023
Current maturities of long-term debt and capital leases	20,395	19,025
Total current liabilities	74,841	59,243
Deferred gain	626	627
Long-term debt and capital leases, less current maturities	103,382	108,843
Deferred income taxes	37,371	36,647
Insurance and claims accruals, less current portion	11,385	10,656
Commitments and contingencies
Stockholders’ equity:
Preferred stock	0	0
Common Stock, $.01 par value; authorized 30,000,000 shares; issued 11,874,497 shares in 2014 and 11,881,232 shares in 2013	119	119
Additional paid-in capital	65,560	65,527
Retained earnings	53,460	55,049
Less treasury stock, at cost (1,356,400 shares in 2014 and 1,356,400 shares in 2013)	(21,806)	(21,765)
Total stockholders’ equity	97,333	98,930
Total liabilities and stockholders’ equity	324,938	314,946
Rights [Member]
Stockholders’ equity:
Preferred stock	$ 0	$ 0