Income Taxes (Tables)
 9 Months Ended
Sep. 30, 2016
Income Tax Disclosure [Abstract]  
Reconciliation of effective income tax rate
The following table shows the Company's effective income tax rate for the three and nine months ended September 30, 2016 and 2015:
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2016
 
2015
 
2016
 
2015
Income before provision for income taxes
$
2,461,716

 
$
5,196,705

 
$
6,301,459

 
$
8,896,854

Income tax expense
$
(99,666
)
 
$
(1,738,000
)
 
$
(1,746,029
)
 
$
(2,792,000
)
Effective tax rate
4.0
%
 
33.4
%
 
27.7
%
 
31.4
%