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Fair Value Measurements (Schedule of Valuation Methodology and Unobservable Inputs for Level 3 Assets Measured at Fair Value on a Nonrecurring Basis) (Details) - Nonrecurring Basis [Member] - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | $ 3,909 | $ 2,020
Significant Unobservable Inputs Level 3 [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | 3,909 | 2,020
Commercial Real Estate [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | 158 | 215
Commercial Real Estate [Member] | Significant Unobservable Inputs Level 3 [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | $ 158 | $ 215
Commercial Real Estate [Member] | Significant Unobservable Inputs Level 3 [Member] | Minimum [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Percentage of valuation technique | 6.00% | 6.00%
Commercial Real Estate [Member] | Significant Unobservable Inputs Level 3 [Member] | Maximum [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Percentage of valuation technique | 10.00% | 10.00%
Commercial [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | $ 3,751 | $ 1,805
Commercial [Member] | Significant Unobservable Inputs Level 3 [Member] |  |
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items] |  |
Impaired loans Fair Value | $ 3,751 | $ 1,805

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