Income Taxes (Tables)

6 Months Ended

Jun. 30, 2013

Income Taxes

Schedule of income tax expense and effective tax rates

	Three Months Ended June 30,						Six Months Ended June 30,
	2013			2012			2013			2012
Income tax expense (benefit)	$	357,011		$	2,022,287		$	(6,136	)	$	2,822,544
Effective income tax rate	102.7		%	44.2		%	102.7		%	44.2		%