Subordinated Debt (Details) - USD ($)
1 Months Ended
Mar. 21, 2018
Mar. 31, 2018
Sep. 30, 2020
Dec. 31, 2019
Proceeds from Issuance of Subordinated Long-term Debt $ 5,539,000      
Subordinated Debt.     $ 5,620,000 $ 5,595,000
Subordinated Debt [Member]        
Debt Instrument, Face Amount $ 5,700,000      
Debt Instrument, Maturity Date Mar. 31, 2028      
Debt Instrument, Interest Rate, Stated Percentage 6.50%      
Debt Instrument, Basis Spread on Variable Rate   3.73%