Condensed Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Contract revenues	$ 75,386	$ 54,583	$ 193,408	$ 204,539
Costs of contract revenues	70,493	57,014	191,560	194,699
Gross profit (loss)	4,893	(2,431)	1,848	9,840
Selling, general and administrative expenses	7,185	6,631	21,754	21,643
Operating loss	(2,292)	(9,062)	(19,906)	(11,803)
Other income (expense)
Other income	44	44	228	44
Interest income	4	5	23	22
Interest expense	(235)	(95)	(638)	(263)
Other income (expense), net	(187)	(46)	(387)	(197)
Loss before income taxes	(2,479)	(9,108)	(20,293)	(12,000)
Income tax benefit	(885)	(2,890)	(6,941)	(4,104)
Net loss	$ (1,594)	$ (6,218)	$ (13,352)	$ (7,896)
Basic loss per share	$ (0.06)	$ (0.23)	$ (0.49)	$ (0.29)
Diluted loss per share	$ (0.06)	$ (0.23)	$ (0.49)	$ (0.29)
Shares used to compute loss per share
Basic	27,138,310	26,909,559	27,126,440	26,946,482
Diluted	27,138,310	26,909,559	27,126,440	26,946,482