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Financial Instruments with Off-Balance-Sheet Risk (Schedule of Financial Instruments) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Commitments to extend credit $ 19,939 $ 21,616
Unfunded commitments under lines of credit 121,609 105,902
Commercial and standby letters of credit 6,132 $ 6,380
Collateralized Letters Of Credit Outstanding 5,400  
Excess of insurance limits held in cash accounts $ 746