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Operating Leases (Tables)
12 Months Ended
Dec. 31, 2015
Leases [Abstract]  
Summary of total lease and operating expense
The following table summarizes the total lease and operating expenses for the years ended December 31, 2015, 2014 and 2013:
 
For the year ended December 31,
2015
 
2014
 
2013
$
928,440

 
$
905,061

 
$
730,845

Future minimum lease payments under the operating leases
The approximate future minimum lease payments under the operating leases are as follows:
 
 
 
Future Minimum Lease Payments by Year
Total
 
2016
 
2017
 
2018
 
2019
 
2020
 
Thereafter
$
5,585,502

 
$
696,198

 
$
696,198

 
$
632,120

 
$
595,807

 
$
624,179

 
$
2,341,000