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Investment Securities - Schedule of Securities Held to Maturity (Details) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Amortized Cost $ 32,546,072 $ 36,827,073
Unrealized Gains 675,119 257,970
Unrealized Losses 11,212 74,716
Estimated Fair Value 33,209,979 37,010,327
State and Municipal Securities [Member]    
Amortized Cost 26,893,531 30,582,785
Unrealized Gains 492,712 208,480
Unrealized Losses 11,212 67,434
Estimated Fair Value 27,375,031 30,723,831
Residential Mortgage-Backed Securities [Member]    
Amortized Cost 5,652,541 6,244,288
Unrealized Gains 182,407 49,490
Unrealized Losses 0 7,282
Estimated Fair Value $ 5,834,948 $ 6,286,496