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Income Taxes (Details 3) (USD $)
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Allocation of deferred tax (benefit) provision items charged to operations and items charged directly to equity      
Deferred tax (benefit) provision allocated to equity   $ (712,832) $ 291,768
Deferred tax provision allocated to operations         
Total deferred tax (benefit) provision   $ (712,832) $ 291,768