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Investment Securities - Schedule of Securities Held to Maturity (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Amortized Cost $ 25,486,961 $ 36,827,073
Unrealized Gains 634,044 257,970
Unrealized Losses 3,425 74,716
Estimated Fair Value 26,117,580 37,010,327
State and Municipal Securities [Member]    
Amortized Cost 20,443,004 30,582,785
Unrealized Gains 460,952 208,480
Unrealized Losses 3,425 67,434
Estimated Fair Value 20,900,531 30,723,831
Residential Mortgage-Backed Securities [Member]    
Amortized Cost 5,043,957 6,244,288
Unrealized Gains 173,092 49,490
Unrealized Losses 0 7,282
Estimated Fair Value $ 5,217,049 $ 6,286,496