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Net Income per Share (Details 2) - 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 - basic and diluted	$ 531,541	$ 443,384	$ 93,157	$ 1,089,999
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	$ 0.08	$ 0.06	$ 0.01	$ 0.16
Diluted	$ 0.08	$ 0.06	$ 0.01	$ 0.16

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