Condensed Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Revenue	$ 93,605	$ 64,293
Cost of revenue	77,993	53,501
Gross profit	15,612	10,792
Selling, general and administrative expenses	8,288	6,748
Gain (loss) on change in fair value of contingent consideration, net	(40)	246
Operating income	7,284	4,290
Interest expense	40	33
Other income	90	181
Income before income tax expense	7,334	4,438
Income tax expense	2,950	1,848
Net income	$ 4,384	$ 2,590
Basic weighted average shares outstanding (in shares)	18,830	18,724
Diluted weighted average shares outstanding (in shares)	19,188	18,892
Per common share data:
Basic earnings per share (in dollars per share)	$ 0.23	$ 0.14
Diluted earnings per share (in dollars per share)	$ 0.23	$ 0.14