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Fair Value (Narrative) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Unpaid principal balance of impairment loan at collateral | $ 3,036 | $ 3,087
Valuation allowance | 22 | 24
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a recurring basis | 0 | 0
Liabilities measured at fair value on a recurring basis | 0 | 0
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a recurring basis | 0 | 0
Liabilities measured at fair value on a recurring basis | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Assets measured at fair value on a recurring basis | 0 | 0
Liabilities measured at fair value on a recurring basis | $ 0 | $ 0

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