Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating revenues	$ 312,747	$ 306,239	$ 343,462
Operating costs and expenses:
Operating costs	285,468	284,282	312,409
Selling, general and administrative expenses	31,263	39,975	28,027
Total operating costs and expenses	316,731	324,257	340,436
Operating income (loss)	(3,984)	(18,018)	3,026
Interest (expense), net	(1,028)	(442)	(573)
Other income (expense), net	(61)	(319)	174
Income (loss) before income taxes	(5,073)	(18,779)	2,627
Provision (benefit) for federal and state income taxes	(831)	(6,553)	1,394
Income (loss) from continuing operations	(4,242)	(12,226)	1,233
Income (loss) from discontinued operations, net of taxes	(2,834)	474	0
Net Income (Loss)	$ (7,076)	$ (11,752)	$ 1,233
Earnings (loss) per common share - Basic and Diluted
Income (loss) from continuing operations	$ (0.16)	$ (0.45)	$ 0.05
Income (loss) from discontinued operations	$ (0.11)	$ 0.02	$ 0.00
Net Income (Loss)	$ (0.27)	$ (0.43)	$ 0.05
Weighted average shares used in computing earnings (loss) per share (in thousands):
Basic	26,722	27,151	27,330
Diluted	26,722	27,151	27,567