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Transactions with Directors and Officers (Details) - Directors, Principal Officers, and Other Related Parties [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Related Party Transaction [Line Items]    
Aggregate balance of loans to directors, principal officers, and their related parties $ 6.2 $ 5.9
Total principal additions 4.7  
Total principal payments 4.4  
Aggregate balance of deposits from directors, principal officers and their related parties $ 24.3 $ 21.2