The amortized cost and estimated fair value of investment securities available for sale at December 31, 2022 and 2021, by contractual maturity are in the following table. (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]
Due in one year or less, amortized cost	$ 42,722,655	$ 12,756,176
Due in one year or less, estimated fair value	41,698,011	12,859,086
Due in one year to five years, amortized cost	190,569,869	116,602,790
Due in one year to five years, estimated fair value	176,217,530	115,896,465
Due in one year to five years, amortized cost	53,995,700	76,531,464
Due in five years to ten years, estimated fair value	45,386,818	74,575,862
Due in ten years and over, amortized cost	9,709,926	9,157,021
Due in ten years and over, estimated fair value	7,869,867	9,016,076
Total, amortized cost	296,998,150	215,047,451
Total, estimated fair value	$ 271,172,226	$ 212,347,489