CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) (USD $) In Thousands, except Share data	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (unaudited) [Abstract]
Revenue	$ 68,472		$ 65,308		$ 137,996		$ 133,892
Cost of revenue	58,045		55,111		116,805		112,938
Gross profit	10,427		10,197		21,191		20,954
Selling, general and administrative expenses	6,809		5,080		12,478		11,036
Amortization of intangible assets	374		386		748		771
Operating income	3,244		4,731		7,965		9,147
Interest expense, net	(768)		(367)		(1,020)		(743)
Other income (expense), net	67		(30)		163		83
Income from continuing operations before provision for income taxes	2,543		4,334		7,108		8,487
Provision for income taxes	1,106		1,755		2,963		3,171
Income from continuing operations	1,437		2,579		4,145		5,316
Income from discontinued operations, net of tax	0		173		0		305
Net income	$ 1,437		$ 2,752		$ 4,145		$ 5,621
Basic
Income from continuing operations (in dollars per share)	$ 0.14	[1]	$ 0.26	[1]	$ 0.42	[1]	$ 0.54	[1]
Income from discontinued operations (in dollars per share)	$ 0	[1]	$ 0.02	[1]	$ 0	[1]	$ 0.03	[1]
Net Income (in dollars per share)	$ 0.14	[1]	$ 0.28	[1]	$ 0.42	[1]	$ 0.57	[1]
Diluted
Income from continuing operations (in dollars per share)	$ 0.14	[1]	$ 0.26	[1]	$ 0.41	[1]	$ 0.53	[1]
Income from discontinued operations (in dollars per share)	$ 0	[1]	$ 0.02	[1]	$ 0	[1]	$ 0.03	[1]
Net Income (in dollars per share)	$ 0.14	[1]	$ 0.27	[1]	$ 0.41	[1]	$ 0.56	[1]
Basic (in shares)	10,050,545		9,896,738		9,971,411		9,858,538
Diluted (in shares)	10,194,171		10,070,809		10,145,738		10,042,916

[1] Total may not add due to rounding.