CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Contract revenues	$ 240,228	$ 150,294
Contract costs	214,125	128,705
Gross profit	26,103	21,589
Selling, general and administrative expenses	15,918	13,953
Amortization of intangible assets	84	84
Gain on sale of property and equipment	(127)	(71)
Income from operations	10,228	7,623
Other income (expense)
Interest income		29
Interest expense	(182)	(210)
Other, net	(27)	(22)
Income before provision for income taxes	10,019	7,420
Income tax expense	3,809	2,920
Net income	$ 6,210	$ 4,500
Income per common share:
-Basic (in dollars per share)	$ 0.30	$ 0.23
-Diluted (in dollars per share)	$ 0.29	$ 0.21
Weighted average number of common shares and potential common shares outstanding:
-Basic (in shares)	20,300	19,983
-Diluted (in shares)	21,087	20,934