Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash	$ 312	$ 1,742
Trade, less allowance for doubtful accounts of $298 in 2013 and $423 in 2012	65,871	64,491
Other	3,160	2,089
Inventories	1,233	1,790
Prepaid expenses and other current assets	16,861	15,415
Total current assets	87,437	85,527
Land and structures	31,483	31,478
Revenue equipment	370,364	362,007
Service, office and other equipment	15,152	14,770
Property and equipment, at cost	416,999	408,255
Accumulated depreciation and amortization	(165,498)	(164,641)
Property and equipment, net	251,501	243,614
Note receivable	1,997	1,979
Other assets	363	374
Total assets	341,298	331,494
Current liabilities:
Bank drafts payable	4,749	5,150
Trade accounts payable	27,992	22,484
Current portion of insurance and claims accruals	7,780	6,915
Accrued expenses	9,301	7,710
Note payable	903	1,352
Current maturities of long-term debt and capital leases	14,399	14,403
Deferred income taxes	2,141	1,304
Total current liabilities	67,265	59,318
Deferred gain	671	646
Long-term debt and capital leases, less current maturities	130,005	122,530
Deferred income taxes	33,526	35,953
Insurance and claims accruals, less current portion	2,963	3,617
Commitments and contingencies	0	0
Stockholders’ equity:
Preferred Stock	0	0
Common Stock, $.01 par value; authorized 30,000,000 shares; issued 11,882,423 shares in 2013 and 11,770,265 shares in 2012	119	118
Additional paid-in capital	65,302	65,259
Retained earnings	63,293	65,767
Less treasury stock, at cost (1,364,789 shares in 2013 and 1,337,568 shares in 2012)	(21,846)	(21,714)
Total stockholders’ equity	106,868	109,430
Total liabilities and stockholders’ equity	341,298	331,494
Rights [Member]
Stockholders’ equity:
Preferred Stock	$ 0	$ 0