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Borrowings (Collateral Pledged for Repurchase Agreements) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Assets Sold under Agreements to Repurchase [Line Items] |  |
Available-for-sale Securities Pledged as Collateral | $ 157,233 | $ 193,918
Short-term Borrowings | 62,256 | 53,046
Mortgage-backed Securities-Government Sponsored Entities [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Available-for-sale Securities Pledged as Collateral | 36,195 | 40,161
Maturity Overnight [Member] | Mortgage-backed Securities-Government Sponsored Entities [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Available-for-sale Securities Pledged as Collateral | 36,195 | 40,161
Securities Sold under Agreements to Repurchase [Member] |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Available-for-sale Securities Pledged as Collateral | 36,195 | 40,161
Short-term Borrowings | $ 30,505 | $ 37,457

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