Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 1,742	$ 2,659
Accounts receivable:
Trade, less allowance for doubtful accounts of $418 in 2012 and $420 in 2011	64,491	55,359
Other	2,089	1,582
Inventories	1,790	1,831
Prepaid expenses and other current assets	15,415	13,466
Total current assets	85,527	74,897
Property and equipment:
Land and structures	31,478	31,377
Revenue equipment	362,007	372,331
Service, office and other equipment	14,770	15,853
Property and equipment, at cost	408,255	419,561
Accumulated depreciation and amortization	(164,641)	(160,761)
Property and equipment, net	243,614	258,800
Note receivable	1,979	2,003
Other assets	374	491
Total assets	331,494	336,191
Current liabilities:
Bank drafts payable	5,150	5,044
Trade accounts payable	22,484	21,691
Current portion of insurance and claims accruals	6,915	3,418
Accrued expenses	7,710	7,790
Note payable	1,352	1,370
Deferred income taxes	1,304	1,693
Current maturities of long-term debt and capital leases	14,403	19,146
Total current liabilities	59,318	60,152
Deferred gain	646	612
Long-term debt and capital leases, less current maturities	122,530	98,927
Deferred income taxes	35,953	45,193
Insurance and claims accruals, less current portion	3,617	4,335
Commitments and contingencies	0	0
Stockholders’ equity:
Preferred stock	0	0
Common Stock, $0.01 par value; authorized 30,000,000 shares; issued 11,770,265 shares in 2012 and 11,791,997 shares in 2011	118	118
Additional paid-in capital	65,259	65,284
Retained earnings	65,767	83,438
Less treasury stock, at cost (1,337,568 shares in 2012 and 1,347,941 shares in 2011)	(21,714)	(21,868)
Accumulated other comprehensive loss	0	0
Total stockholders’ equity	109,430	126,972
Total liabilities and stockholders’ equity	331,494	336,191
Rights [Member]
Stockholders’ equity:
Preferred stock	$ 0	$ 0