Income Per Common Share (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net income	$ 1,703,271	$ 1,501,023	$ 1,521,131	$ 2,014,791	$ 1,840,847	$ 1,689,264	$ 4,725,425	$ 5,544,902
Weighted average shares outstanding	5,527,696			5,526,233			5,529,189	5,519,337
Effect of dilutive shares	168,551			68,823			166,425	69,195
Weighted average shares outstanding - diluted	5,696,247			5,595,056			5,695,614	5,588,532
Earnings per share - basic (in dollars per share)	$ 0.31			$ 0.36			$ 0.85	$ 1.00
Earnings per share - diluted (in dollars per share)	$ 0.30			$ 0.36			$ 0.83	$ 0.99