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Borrowings (Short-Term Borrowings) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Short-term Debt [Line Items] |  |
Short-term Borrowings | $ 32,811 | $ 53,235
Securities Sold under Agreements to Repurchase [Member] |  |
Short-term Debt [Line Items] |  |
Short-term Borrowings | $ 32,811 | 33,563
FHLB of Pittsburgh [Member] | Federal Home Loan Bank Advances [Member] |  |
Short-term Debt [Line Items] |  |
Short-term Borrowings |  | $ 19,672

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