Condensed Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Contract revenues	$ 259,852	$ 353,135	$ 293,494
Costs of contract revenues	249,674	287,902	230,797
Gross profit	10,178	65,233	62,697
Selling, general and administrative expenses	29,519	32,646	30,695
Operating (loss)/income	(19,341)	32,587	32,002
Other (income) expense
Gain from bargain purchase of a business	0	(1,589)	0
Other income	(198)	0	0
Interest income	(31)	(99)	(352)
Interest expense	349	434	790
Other expense (income), net	120	(1,254)	438
(Loss) income before income taxes	(19,461)	33,841	31,564
Income tax (benefit) expense	(6,347)	11,959	11,534
Net (loss) income	$ (13,114)	$ 21,882	$ 20,030
Basic (loss) earnings per share	$ (0.49)	$ 0.81	$ 0.85
Diluted (loss) earnings per share	$ (0.49)	$ 0.81	$ 0.84
Shares used to compute (loss) earnings per share
Basic	26,990,059	26,899,373	23,577,854
Diluted	26,990,059	27,165,852	23,979,943