Time Deposits - Scheduled maturities of time deposits (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Time Deposits
One year or less	$ 32,896,686	$ 49,799,669
Over one year to two years	25,095,507	13,936,624
Over two years to three years	10,338,194	10,332,065
Over three years to four years	4,837,993	3,488,891
Over four years to five years	3,861,470	2,989,892
Thereafter	208,082	1,769
Time Deposits, Total	$ 77,237,932	$ 80,548,910