Consolidated Statements of Operations (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Contract revenues	$ 88,992,000	$ 75,386,000	$ 248,131,000	$ 193,408,000
Costs of contract revenues	83,381,000	70,493,000	228,859,000	191,560,000
Gross profit (loss)	5,611,000	4,893,000	19,272,000	1,848,000
Selling, general and administrative expenses	7,974,000	7,185,000	23,491,000	21,754,000
Income (loss) from operations	(2,363,000)	(2,292,000)	(4,219,000)	(19,906,000)
Other income (expense)
(Loss) gain from sale of assets, net			59,000	156,000
Other income	0	44,000	614,000	228,000
Interest income	0	4,000	13,000	23,000
Interest expense	(111,000)	(235,000)	(427,000)	(638,000)
Other (income) expense, net	(111,000)	(187,000)	200,000	(387,000)
Income (loss) before income taxes	(2,474,000)	(2,479,000)	(4,019,000)	(20,293,000)
Income tax benefit	(1,500,000)	(885,000)	(2,161,000)	(6,941,000)
Net income (loss)	(974,000)	(1,594,000)	(1,858,000)	(13,352,000)
Net loss attributable to noncontrolling interest	(31,000)	0.00	(56,000)	0
Net income (loss)	$ (943,000)	$ (1,594,000)	$ (1,802,000)	$ (13,352,000)
Basic loss per share (in dollars per share)	$ (0.03)	$ (0.06)	$ (0.07)	$ (0.49)
Diluted loss per share (in dollars per share)	$ (0.03)	$ (0.06)	$ (0.07)	$ (0.49)
Shares used to compute income (loss) per share
Basic (shares)	27,318,180	27,138,310	27,273,176	27,126,440
Diluted (shares)	27,318,180	27,138,310	27,273,176	27,126,440