Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Operating revenues	$ 79,612	$ 73,705	$ 156,862	$ 141,689
Operating costs	72,145	69,674	143,674	132,786
Gross profit	7,467	4,031	13,188	8,903
Selling, general and administrative expenses	6,890	10,273	15,210	17,656
Operating income (loss)	577	(6,242)	(2,022)	(8,753)
Other income (expense):
Other income (expense), net	(16)	159	(59)	148
Interest expense, net	(191)	(78)	(408)	(154)
Income (loss) before income taxes	370	(6,161)	(2,489)	(8,759)
Provision (benefit) for federal and state income taxes	228	(1,644)	(658)	(2,704)
Net income (loss)	$ 142	$ (4,517)	$ (1,831)	$ (6,055)
Earnings (loss) per common share:
Basic	$ 0.01	$ (0.16)	$ (0.07)	$ (0.22)
Diluted	$ 0.01	$ (0.16)	$ (0.07)	$ (0.22)
Weighted average shares used in computing earnings (loss) per share (in thousands):
Basic	26,578	27,419	26,566	27,427
Diluted	26,958	27,419	26,566	27,427