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Fair Value of Assets and Liabilities (Additional Qualitative Information about Level 3 Assets) (Details) - USD ($) | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Impaired Loans [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure |  | $ 451,000 | $ 1,319,000
Impaired Loans [Member] | Appraisal of collateral [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure | [1],[2] | 344,000 | 232,000
Impaired Loans [Member] | Present value of future cash flows [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure |  | $ 107,000 | $ 1,087,000
Impaired Loans [Member] | Present value of future cash flows [Member] | Measurement Input, Discount Rate [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  | 0.04 |
Impaired Loans [Member] | Minimum [Member] | Appraisal of collateral [Member] | Measurement Input, Appraised Value [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  | 0.1 | 0.1
Impaired Loans [Member] | Minimum [Member] | Present value of future cash flows [Member] | Measurement Input, Discount Rate [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  |  | 0.04
Impaired Loans [Member] | Maximum [Member] | Appraisal of collateral [Member] | Measurement Input, Appraised Value [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  | 0.5758 | 0.8154
Impaired Loans [Member] | Maximum [Member] | Present value of future cash flows [Member] | Measurement Input, Discount Rate [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  |  | 0.06
Impaired Loans [Member] | Weighted Average [Member] | Appraisal of collateral [Member] | Measurement Input, Appraised Value [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  | 0.1893 | 0.5606
Impaired Loans [Member] | Weighted Average [Member] | Present value of future cash flows [Member] | Measurement Input, Discount Rate [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Servicing Asset, Measurement Input |  | 0.04 | 0.058
Foreclosed Real Estate Owned [Member] | Appraisal of collateral [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets, Fair Value Disclosure | [1],[2] | $ 1,792,000 | $ 1,115,000
Foreclosed Real Estate Owned [Member] | Minimum [Member] | Appraisal of collateral [Member] | Measurement Input, Cost to Sell [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Other Real Estate Owned, Measurement Input |  | 0.07 | 0.07
Foreclosed Real Estate Owned [Member] | Maximum [Member] | Appraisal of collateral [Member] | Measurement Input, Cost to Sell [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Other Real Estate Owned, Measurement Input |  | 0.6875 | 0.8571
Foreclosed Real Estate Owned [Member] | Weighted Average [Member] | Appraisal of collateral [Member] | Measurement Input, Cost to Sell [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Other Real Estate Owned, Measurement Input |  | 0.0925 | 0.078
[1] | Appraisals may be adjusted by management for qualitative factors such as economic conditions and estimated liquidation expenses. The range and weighted average of liquidation expenses and other appraisal adjustments are presented as a percent of the appraisal.
[2] | Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable, less any associated allowance.

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