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Fair Value Measurements (Fair Value of Assets Measured on Nonrecurring Basis) (Details) - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
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Appraisal of Collateral [Member] | Weighted Average [Member] |  |
Impaired loans: |  |
Impaired loans, Liquidation expense, Range | 10.00% | 10.00%
Other real estate owned, Appraisal adjustment, Range | 1.00% |
Discounted Cash Flow Analysis [Member] | Weighted Average [Member] |  |
Impaired loans: |  |
Impaired loans, Discount rate, Range | 6.00% | 6.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Appraisal of Collateral [Member] |  |
Impaired loans: |  |
Impaired loans | $ 617 | $ 610
Other real estate owned | $ 203 |
Impaired loans, Liquidation expense, Range | 10.00% | 10.00%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Appraisal of Collateral [Member] | Maximum |  |
Impaired loans: |  |
Other real estate owned, Appraisal adjustment, Range | 19.00% |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Appraisal of Collateral [Member] | Minimum |  |
Impaired loans: |  |
Other real estate owned, Appraisal adjustment, Range | 0.00% |
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Discounted Cash Flow Analysis [Member] |  |
Impaired loans: |  |
Impaired loans | $ 408 | $ 1,110
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Discounted Cash Flow Analysis [Member] | Maximum |  |
Impaired loans: |  |
Impaired loans, Discount rate, Range | 7.25% | 7.25%
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Nonrecurring [Member] | Discounted Cash Flow Analysis [Member] | Minimum |  |
Impaired loans: |  |
Impaired loans, Discount rate, Range | 4.00% | 6.00%

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