Earnings Per Share (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings per common share - Basic
Net income	$ 715,170	$ 523,380
Weighted average number of common shares outstanding	9,363,368	9,254,580
Earnings per common share - Basic	$ 0.08	$ 0.06
Earnings per common share - Diluted
Net income	$ 715,170	$ 523,380
Weighted average number of common shares outstanding	9,363,368	9,254,580
Dilutive effect of outstanding stock options	10,962	42,712
Weighted average number of common shares outstanding - Diluted	9,374,330	9,297,292
Earnings per common share - Diluted	$ 0.08	$ 0.06