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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2016
Earnings Per Share [Abstract]  
Summary of basic and diluted net income per share

 

    Year Ended December 31,  
    2016     2015     2014  
Basic income per share                  
Net income for the period - numerator   $ 7,312,976     $ 11,542,205     $ 11,706,360  
Weighted average common stock outstanding - denominator     21,416,143       20,316,400       19,270,394  
Net income per share   $ 0.34     $ 0.57     $ 0.61  
                         
Diluted income per share                        
Net income for the period- numerator   $ 7,312,976     $ 11,542,205     $ 11,706,360  
Weighted average common stock outstanding - denominator     21,416,143       20,316,400       19,270,394  
Effect of dilution     -       -       -  
Weighted average common stock outstanding - denominator     21,416,143       20,316,400       19,270,394  
Diluted income per share   $ 0.34     $ 0.57     $ 0.61