Consolidated Statements of Operations (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Contract revenues	$ 84,081,000	$ 67,132,000	$ 159,140,000	$ 118,022,000
Costs of contract revenues	76,250,000	67,349,000	145,479,000	121,067,000
Gross profit (loss)	7,831,000	(217,000)	13,661,000	(3,045,000)
Selling, general and administrative expenses	7,826,000	7,478,000	15,517,000	14,569,000
Income (loss) from operations	5,000	(7,695,000)	(1,856,000)	(17,614,000)
Other income (expense)
(Loss) gain from sale of assets, net			48,000	93,000
Other income	316,000	4,000	614,000	184,000
Interest income	1,000	8,000	12,000	19,000
Interest expense	(132,000)	(234,000)	(316,000)	(403,000)
Other (income) expense, net	185,000	(222,000)	310,000	(200,000)
Income (loss) before income taxes	190,000	(7,917,000)	(1,546,000)	(17,814,000)
Income tax benefit	(22,000)	(2,497,000)	(661,000)	(6,057,000)
Net income (loss)	212,000	(5,420,000)	(885,000)	(11,757,000)
Net loss attributable to noncontrolling interest	(18,000)	0.00	(25,000)	0
Net income (loss)	$ 230,000	$ (5,420,000)	$ (860,000)	$ (11,757,000)
Basic loss per share (in dollars per share)	$ 0.01	$ (0.20)	$ (0.03)	$ (0.43)
Diluted loss per share (in dollars per share)	$ 0.01	$ (0.20)	$ (0.03)	$ (0.43)
Shares used to compute income (loss) per share
Basic (shares)	27,270,367	27,121,417	27,250,268	27,120,593
Diluted (shares)	27,600,661	27,121,417	27,250,268	27,120,593