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Earnings Per Share (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Basic income per share        
Net income for the period - numerator $ 1,572,335 $ 3,034,542 $ 3,296,121 $ 4,242,251
Weighted average common stock outstanding - denominator 21,450,316 21,450,316 21,450,316 21,404,627
Net income per share $ 0.07 $ 0.14 $ 0.15 $ 0.20
Diluted income per share        
Net income for the period - numerator $ 1,572,335 $ 3,034,542 $ 3,296,121 $ 4,242,251
Weighted average common stock outstanding - denominator 21,450,316 21,450,316 21,450,316 21,404,627
Effect of dilution
Weighted average common stock outstanding - denominator 21,450,316 21,450,316 21,450,316 21,404,627
Diluted income per share $ 0.07 $ 0.14 $ 0.15 $ 0.20