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Fair Value Measurements - Additional Quantitative Information (Details) $ in Thousands | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
--- | --- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Loans evaluated individually | $ 20,246 | $ 37,079 |
OREO | 4,571 | 3,057 | $ 376
Non-recurring basis |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO | 106 | 55 |
Bank property held for sale | $ 10,676 | $ 4,004 |
Loans evaluated individually (percent) | 2,771 | 2,686 |
Non-recurring basis | Level 3 |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO | $ 106 | $ 55 |
Bank property held for sale | $ 10,676 | $ 4,004 |
Loans evaluated individually (percent) | 2,771 | 2,686 |
Non-recurring basis | Level 3 | Appraisal of collateral | Loans evaluated individually |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Loans evaluated individually | $ 2,771 | $ 2,686 |
Non-recurring basis | Level 3 | Appraisal of collateral | OREO |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO | 106 | 55 |
Non-recurring basis | Level 3 | Appraisal of collateral or real estate listing price | Bank property held for sale |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Bank property held for sale | $ 10,676 | $ 4,004 |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | Loans evaluated individually | Minimum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Loans evaluated individually (percent) | (0.300) | (0.029) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | Loans evaluated individually | Maximum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Loans evaluated individually (percent) | (1) | (1) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | Loans evaluated individually | Weighted Average |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Loans evaluated individually (percent) | (0.370) | (0.578) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | OREO | Minimum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO (percent) | (0.250) | (0.250) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | OREO | Maximum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO (percent) | (1) | (1) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral | OREO | Weighted Average |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO (percent) | (0.545) |  |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral or real estate listing price | OREO | Weighted Average |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
OREO (percent) |  | (0.650) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral or real estate listing price | Bank property held for sale | Minimum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Bank property held for sale (percent) | (0.062) | (0.062) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral or real estate listing price | Bank property held for sale | Maximum |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Bank property held for sale (percent) | (0.649) | (0.713) |
Appraisal adjustments | Non-recurring basis | Level 3 | Appraisal of collateral or real estate listing price | Bank property held for sale | Weighted Average |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Bank property held for sale (percent) | (0.428) | (0.407) |

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