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Fair Value (Fair Value Assets and Liabilities Measured on Nonrecurring Basis Validation Techniques) (Details) - Fair Value, Measurements, Nonrecurring - Individually analyzed/Impaired loans - Significant Unobservable Inputs (Level 3) $ in Thousands | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
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Commercial and Industrial Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 4,985 | $ 2,109
Commercial and Industrial Loans | Sales comparison approach | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.26 | 0.29
Commercial and Industrial Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 1 | 1
Commercial and Industrial Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.61 | 0.64
Commercial Real Estate Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 8,893 | $ 493
Commercial Real Estate Loans | Sales comparison approach | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.30 | 0.47
Commercial Real Estate Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 1 | 0.91
Commercial Real Estate Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.56 | 0.64
Agricultural Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 551 |
Agricultural Loans | Sales comparison approach | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.30 |
Agricultural Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.96 |
Agricultural Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.65 |
Consumer Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 0 |
Consumer Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 1 |
Consumer Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 1 |
Home Equity Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 369 |
Home Equity Loans | Sales comparison approach | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.09 |
Home Equity Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.09 |
Home Equity Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.09 |
Residential Mortgage Loans |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair Value | $ 75 |
Residential Mortgage Loans | Sales comparison approach | Minimum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.43 |
Residential Mortgage Loans | Sales comparison approach | Maximum |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.97 |
Residential Mortgage Loans | Sales comparison approach | Weighted Average |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Measurement input | 0.67 |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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