Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 384,123	$ 133,220	$ 270,437
State	172,739	59,428	71,494
Total current	556,862	192,648	341,931
Deferred:
Federal	7,778,464	(3,252,769)	(939,803)
State	(1,382,203)	770,687	(148,574)
Total deferred	6,396,261	(2,480,856)	(1,088,377)
Tax provision (benefit) recorded as an increase (decrease) in liability for unrecorded tax benefits	920,497	(299,441)	17,061
Provision (benefit) for income taxes	$ 7,873,620	$ (2,588,875)	$ (729,385)