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Cash and Cash Equivalents (Narrative Disclosures) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Cash and Cash Equivalents [Abstract]    
Cash and due from banks $ 16,107 $ 23,319
Required reserves in the form of either vault cash or deposits held at the Federal Reserve Bank 9,200 9,900
Federal Reserve Bank balances 44,400 43,600
Short-term investments $ 50,995 $ 63,227