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Operating Leases (Tables)
12 Months Ended
Dec. 31, 2014
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, 2014, 2013 and 2012:
 
For the year ended December 31,
2014
 
2013
 
2012
$
905,061

 
$
730,845

 
$
686,747

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
 
2015
 
2016
 
2017
 
2018
 
2019
 
Thereafter
$
6,282,000

 
$
697,000

 
$
696,000

 
$
696,000

 
$
632,000

 
$
596,000

 
$
2,965,000