Derivative Financial Instruments (Fair Value Hedge) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Cash pledged as collateral	$ 0	$ 1,200
Notional Amount, Liability	15,064
Fair Value Hedging
Derivative [Line Items]
Notional Amount, Asset	19,820
Notional Amount, Liability		35,635
Fair Value Hedging \| Other Assets
Derivative [Line Items]
Fair Value Hedge Assets	74
Fair Value Hedging \| Other Liabilities
Derivative [Line Items]
Fair Value	(339)	(999)
Fair Value Hedging \| Interest income
Derivative [Line Items]
Amount of Gain (Loss)	734	627
Fair Value Hedging \| Interest Rate Swap
Derivative [Line Items]
Cash pledged as collateral	$ 2,500	$ 3,900

The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features.

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Nominal or face amount used to calculate payments on the derivative asset.

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Nominal or face amount used to calculate payments on the derivative liability.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value of all derivative assets designated as fair value hedging instruments.

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Fair value of all derivative liabilities designated as fair value hedging instruments.

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Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period.

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