Employee Benefit Plans - Compensation Expense Related To Stock Options (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	$ 185,408	$ 155,942	$ 558,682	$ 446,544
Income tax benefit	53,583	45,067	161,459	129,051
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense	166,331	172,558	500,409	485,466
Income tax benefit	$ 48,069	$ 49,869	$ 144,618	$ 140,299