Earnings Per Common Share (EPS) (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
Basic Earnings Per Share Computation:
Net income (loss)	$ 1,066,963	$ 488,627	$ 483,888	$ 183,710	$ (307,761)	$ 384,101	$ 2,039,478	$ 260,050
Basic weighted-average shares outstanding	8,450,843			8,423,435			8,409,114	8,401,405
Basic earnings per share	$ 0.13			$ 0.02			$ 0.24	$ 0.03
Diluted Earnings Per Share Computation:
Net income (loss)	$ 1,066,963	$ 488,627	$ 483,888	$ 183,710	$ (307,761)	$ 384,101	$ 2,039,478	$ 260,050
Diluted weighted-average shares outstanding	8,450,843			8,423,435			8,409,114	8,401,405
Incremental shares from assumed conversions of dilutive securities	76,466			3,747			54,447	3,747
Adjusted weighted average number of common shares	8,527,309			8,427,183			8,463,561	8,405,152
Diluted earnings per share	$ 0.13			$ 0.02			$ 0.24	$ 0.03