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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2015
Earnings Per Share [Abstract]  
Summary of basic and diluted net income per share

     Year Ended    
  December 31, 
  2015  2014  2013 
Basic income per share         
Net Income for the year - numerator $11,542,205  $11,706,360  $13,014,648 
Weighted average common stock outstanding - denominator  20,316,400   19,270,394   18,458,446 
Net income per share $0.57  $0.61  $0.71 
             
Diluted income per share            
Net Income for the year - numerator $11, 542,205  $11,706,360  $13,014,648 
Weighted average common stock outstanding - denominator  20,316,400   19, 270,394   18,458,446 
Effect of dilution            
Warrant            
Weighted average common stock outstanding - denominator  20,316,400   19, 270,394   18,458,446 
Diluted income per share $0.57  $0.61  $0.71