Earnings Per Share - Computation of Basic and Diluted Earnings Per 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 (loss)	$ 337,124	$ (22,144)	$ (356,424)	$ 249,233	$ 136,845	$ 187,823	$ (41,444)	$ 573,901
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	9,277,043			7,646,875			9,269,834	7,639,588
Net effect of dilutive unvested restricted stock awards included for treasury stock method	13,941			5,382				1,286
Average number of common shares outstanding - diluted	9,290,984			7,652,257			9,269,834	7,640,874
Earnings per common share
Basic	$ 0.04			$ 0.03			$ 0.00	$ 0.08
Diluted	$ 0.04			$ 0.03			$ 0.00	$ 0.08