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Fair Value Measurements - Nonrecurring (Details) - USD ($) | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Dec. 31, 2018
Assets and liabilities measured at fair value |  |  |  |
Carrying value of other real estate owned | $ 2,686,000 | $ 5,004,000 | $ 4,682,000 | $ 7,175,000
Outstanding balance |  | 12,700,000 |  |
OREO Valuation allowance | 1,613,000 | 6,712,000 | $ 7,466,000 | $ 8,027,000
Impaired Loans [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Valuation allowance |  | 8,600,000 |  |
Other Real Estate Owned [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Outstanding balance |  | 12,700,000 |  |
Fair Value, Measurements, Nonrecurring [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 14,886,000 | 12,439,000 |  |
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 12,200,000 | 7,435,000 |  |
Valuation allowance | 2,700,000 | 1,200,000 |  |
Increase (decrease) of specific allocations within the provision for loan losses | 1,600,000 | 783,000 |  |
Fair Value, Measurements, Nonrecurring [Member] | Impaired Loans [Member] | Reported Value Measurement [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 14,900,000 |  |  |
Fair Value, Measurements, Nonrecurring [Member] | Other Real Estate Owned [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 2,686,000 | 5,004,000 |  |
Carrying value of other real estate owned | 2,700,000 | 5,000,000.0 |  |
Outstanding balance | 4,300,000 |  |  |
OREO Valuation allowance | 1,600,000 | 6,700,000 |  |
OREO participations |  | 937,000 |  |
Fair Value, Measurements, Nonrecurring [Member] | Level 3 |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 14,886,000 | 12,439,000 |  |
Fair Value, Measurements, Nonrecurring [Member] | Level 3 | Impaired Loans [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | 12,200,000 | 7,435,000 |  |
Fair Value, Measurements, Nonrecurring [Member] | Level 3 | Other Real Estate Owned [Member] |  |  |  |
Assets and liabilities measured at fair value |  |  |  |
Total | $ 2,686,000 | $ 5,004,000 |  |

X
- Definition Represents the amount of increase (decrease) in specific allocations within the provision for loan losses for impaired financing receivables. + References No definition available. + Details
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