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Investment Securities - Schedule of Securities Held to Maturity (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Amortized Cost $ 36,827,073 $ 44,590,841
Unrealized Gains 257,970 605,174
Unrealized Losses 74,716 48,215
Estimated Fair Value 37,010,327 45,147,800
State and Municipal Securities [Member]    
Amortized Cost 30,582,785 41,447,092
Unrealized Gains 208,480 527,632
Unrealized Losses 67,434 48,083
Estimated Fair Value 30,723,831 41,926,641
Residential Mortgage-Backed Securities [Member]    
Amortized Cost 6,244,288 3,143,749
Unrealized Gains 49,490 77,542
Unrealized Losses 7,282 132
Estimated Fair Value $ 6,286,496 $ 3,221,159