Premises and Equipment - Summary of Major Classification of Premises and Equipment (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 7,005,608	$ 6,861,161
Less: Accumulated depreciation and amortization	3,780,719	3,417,652
Premises and equipment, net	3,224,889	3,443,509
Land [Member]
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Gross	47,512	47,512
Buildings and Improvements [Member]
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Gross	4,951,619	4,920,575
Furniture, Fixtures and Equipment [Member]
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Gross	1,949,632	1,836,230
Automobiles [Member]
Property Plant And Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 56,845	$ 56,844