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Earnings (Loss) Per Share (Tables)
12 Months Ended
Dec. 31, 2019
Earnings Per Share [Abstract]  
Schedule of calculation of numerator and denominator in earnings per share
The following table shows the computation of the numerator and the denominator used to calculate diluted earnings (loss) per share for the years ended December 31:
201920182017
Numerator:
Net income (loss) attributable to common shareholders$(3,537,759) $(6,963,068) $(7,978,633) 
Denominator:
Weighted-average shares outstanding – basic15,396,098  15,614,052  15,911,577  
Dilutive effect of restricted stock and stock options—  —  —  
Weighted-average shares outstanding – diluted15,396,098  15,614,052  15,911,577  
Schedule of anti-dilutive securities excluded from computation of earnings per share
The Company's anti-dilutive restricted shares and stock options outstanding were as follows for the years ended December 31:
201920182017
Anti-dilutive shares and options4,000  41,650  18,325