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Earnings (Loss) Per Share (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Numerator:    
Net income (loss) from continuing operations $ (350,749) $ (1,883,418)
Discontinued operations 495,410 818,273
Net income (loss) 144,661 (1,065,145)
Net (income) loss at subsidiary attributable to noncontrolling interests 22,167 9,525
Net income (loss) attributable to common shareholders $ 166,828 $ (1,055,620)
Denominator:    
Weighted-average shares outstanding – basic (in shares) 14,974,663 15,240,614
Dilutive effect of other securities (in shares) 269,483 337,695
Weighted-average shares outstanding – diluted (in shares) 15,244,146 15,578,309