Disclosure About Fair Values of Assets and Liabilities - Reconciliation of beginning and ending balances (Details) - Mortgage Servicing Rights [Member] - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Servicing Assets at Fair Value [Line Items]
Fair value as of the beginning of the period	$ 1,256,842	$ 1,398,293	$ 1,213,815	$ 1,252,740
Recognition of mortgage servicing rights on the sale of loans	594,455	60,088	989,479	146,766
Change in fair value due to changes in valuation inputs or assumptions used in the valuation model	(235,324)	(152,323)	(587,321)	(93,448)
Fair value at the end of the period	$ 1,615,973	$ 1,306,058	$ 1,615,973	$ 1,306,058