Income Taxes (Tables)
 3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Reconciliation of effective income tax rate
The following table shows the Company's effective income tax rate for the three months ended March 31, 2015 and 2014:
 
Three Months Ended
March 31,
 
2015
 
2014
Income before provision for income taxes
$
5,260,777

 
$
3,926,775

Income tax expense
(1,933,000
)
 
(1,496,816
)
Effective tax rate
36.7
%
 
38.1
%