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Operating Leases (Tables)
6 Months Ended
Jun. 30, 2016
Leases [Abstract]  
Summary of Total Lease and Operating Expenses
The following table summarizes the total lease and operating expenses for the three and six months ended June 30, 2016 and 2015:
 
 
June 30,
2016
 
June 30,
2015
Three Months Ended
$
233,207

 
$
234,333

Six Months Ended
$
460,555

 
$
462,797

Future Minimum Lease Payments under Operating Leases
The approximate future minimum lease payments under the operating leases are as follows:
 
Future Minimum Lease Payments
Six Months 
 Remaining In
 
 
 
 
 
 
 
 
 
 
 
 
2016
 
2017
 
2018
 
2019
 
2020
 
Thereafter
 
Total
$
348,099

 
$
696,198

 
$
632,120

 
$
595,807

 
$
624,179

 
$
2,341,000

 
$
5,237,403