CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Statement of Cash Flows [Abstract]
Revenues	$ 35,111,402	$ 31,293,193	$ 68,366,204	$ 66,121,132
Cost of revenues	32,556,738	30,542,452	62,341,782	62,485,327
Gross profit	2,554,664	750,741	6,024,422	3,635,805
Reduction of contingent liability	(1,850,000)		(1,850,000)
Selling, general and administrative expenses	2,395,745	919,227	4,653,829	2,113,974
Income (loss) from operations	2,008,919	(168,486)	3,220,593	1,521,831
Other income (expense)
Other income	7,598	633	32,888	633
Other expense			(40,726)
Interest expense	(112,999)		(219,139)	(44)
Total other income (expense)	(105,401)	633	(226,977)	589
Income before income taxes	1,903,518	(167,853)	2,993,616	1,522,420
Income tax benefit	(12,248)	8,828	(18,751)	(107,172)
Net income	$ 1,891,270	$ (159,025)	$ 2,974,865	$ 1,415,248
Earnings per common share
Basic	$ 0.11	$ (0.02)	$ 0.17	$ 0.14
Diluted	$ 0.10	$ (0.02)	$ 0.15	$ 0.10
Shares used in computing earnings (loss) per share
Basic	17,409,034	10,136,941	17,243,762	9,781,851
Diluted	19,887,288	10,136,941	19,798,989	14,204,958