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Net Income per Share (Details 1) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Earnings Per Share [Abstract]        
Net income from discontinued operations - basic and diluted $ 158,990 $ 721,890
Weighted average shares outstanding - basic 6,869,027 6,874,679 6,871,299 6,874,314
Weighted average shares outstanding - diluted 6,869,027 6,886,900 6,871,299 6,875,195
Per share data:        
Basic from discontinued operations $ 0.02 $ 0.11
Diluted from discontinued operations $ 0.02 $ 0.11