INCOME PER COMMON SHARE (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Earnings Per Share [Abstract]
Net income	$ 1,810,075	$ 1,521,131
Weighted average shares outstanding	5,521,707	5,530,256
Effect of dilutive shares	163,444	55,366
Weighted average shares outstanding - diluted	5,685,151	5,585,622
Earnings per share - basic (in dollars per share)	$ 0.33	$ 0.28
Earnings per share - diluted (in dollars per share)	$ 0.32	$ 0.27