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Investments in Debt Securities Available for Sale - Summary of Investment Securities Gross Unrealized Gains (Losses) (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Fair Value Disclosures [Abstract]    
Investments in debt securities with unrealized gains, Less than 12 months , Fair Value $ 7,985,886 $ 7,515,676
Investments in debt securities with unrealized losses, Less than 12 months, unrealized losses, Fair Value 6,742,322
Investment securities - available for sale, Fair Value 7,985,886 14,257,998
Investments in debt securities with unrealized gains, Less than 12 months, Unrealized Holding Gains (Losses) 42,778 38,068
Investments in debt securities with unrealized losses, Less than 12 months, Unrealized Holding Gains (Losses) (8,196)
Unrealized Holding Gains (Losses) $ 42,778 $ 29,872