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Borrowings (Short-Term Borrowings) (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Short-term Debt [Line Items]    
Short-term borrowings $ 62,256 $ 53,046
Securities Sold under Agreements to Repurchase [Member]    
Short-term Debt [Line Items]    
Short-term borrowings 30,505 37,457
FHLB of Pittsburgh [Member] | Federal Home Loan Bank Advances [Member]    
Short-term Debt [Line Items]    
Short-term borrowings $ 31,751 $ 15,589