Investment Securities Available for Sale - Schedule of Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Securities Available-for-sale Amortized cost
Due in one year or less	$ 661,720
Due from one year to five years	427,177
Due from five to ten years	23,559,416
Debt securities, available-for-sale, maturity, amortized Cost	24,648,313
Mortgage-backed securities	835,716
Amortized Cost	25,484,029	$ 25,457,241
Securities Available-for-sale, Estimated Fair Value
Due in one year or less	664,213
Due from one year to five years	434,099
Due from five to ten years	24,469,037
Debt securities, available-for-sale, maturity, amortized Cost	25,567,349
Mortgage-backed securities	863,603
Estimated Fair Value	$ 26,430,952	$ 25,595,317

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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