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Basic and Diluted Earnings (Loss) per Share (Details) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Numerator:    
Net income (loss) $ 523,793 $ (43,660)
Denominator:    
Denominator for basic earnings (loss) per share-weighted average shares 1,845,000 1,846,000
Dilutive effect of employee stock options and other warrants 1,000 0
Denominator for diluted earnings (loss) per share-adjusted weighted average shares 1,846,000 1,846,000
Basic earnings (loss) per share $ 0.28 $ (0.02)
Diluted earnings (loss) per share $ 0.28 $ (0.02)