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Commitments, Contingent Liabilities, and Financial Instruments with Off-Balance Sheet Risk - Contractual or Notional Amounts of Financial Instruments (Details) - USD ($)
Dec. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]    
Commitments to extend credit $ 55,934,489 $ 39,418,110
Standby letters of credit and financial guarantees $ 1,255,000 $ 4,342,849