Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Contract revenues	$ 292,042	$ 259,852	$ 353,135
Costs of contract revenues	277,672	249,614	288,361
Gross profit	14,370	10,238	64,774
Selling, general and administrative expenses	28,573	29,519	32,646
Operating (loss) income	(14,203)	(19,281)	32,128
Other income (expense)
Gain from bargain purchase of a business	0	0	1,589
(Loss) gain from sale of assets, net	(1,822)	(60)	459
Other income	227	198	0
Interest income	35	31	99
Interest expense	(743)	(349)	(434)
Other expense (income), net	(2,303)	(180)	1,713
(Loss)/income before income taxes	(16,506)	(19,461)	33,841
Income tax (benefit) expense	(4,640)	(6,347)	11,959
Net (loss) income	(11,866)	(13,114)	21,882
Net income/(loss) attributable to noncontrolling interest	$ 0	$ 0	$ 0
Basic loss per share (in dollars per share)	$ (0.44)	$ (0.49)	$ 0.81
Diluted loss per share (in dollars per share)	$ (0.44)	$ (0.49)	$ 0.81
Shares used to compute loss (income) per share
Basic (shares)	27,138,927	26,990,059	26,899,373
Diluted (shares)	27,138,927	26,990,059	27,165,852