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Fair Value of Financial Instruments - Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3) (Details) $ in Thousands | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
--- | --- | --- | ---
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
OREO | $ 1,078 | $ 1,505 | $ 3,792
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Impaired loans | 29 |  |
OREO | 1,078 |  |
Assets held-for-sale | $ 198 |  |
Fair Value, Inputs, Level 3 [Member] | Minimum [Member] | Measurement Input, Comparability Adjustment [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Impaired loans | 0.09 |  |
OREO | 0.09 |  |
Assets held-for-sale | 0.09 |  |
Fair Value, Inputs, Level 3 [Member] | Maximum [Member] | Measurement Input, Comparability Adjustment [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Impaired loans | 0.10 |  |
OREO | 0.10 |  |
Assets held-for-sale | 0.10 |  |
Fair Value, Inputs, Level 3 [Member] | Weighted Average [Member] | Measurement Input, Comparability Adjustment [Member] |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |
Impaired loans | 0.095 |  |
OREO | 0.095 |  |
Assets held-for-sale | 0.095 |  |

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- Definition Value of input used to measure real estate owned by financial institution by financial institution which is not directly related to its business. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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