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Fair Value - Assets measured at fair value on a non-recurring basis (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($) $ in Thousands | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Impaired Loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | $ 8,059 | $ 5,536
Foreclosed Real Estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 1,501 | 1,627
Fair Value, Inputs, Level 1 [Member] | Impaired Loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Foreclosed Real Estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Impaired Loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Foreclosed Real Estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Impaired Loans [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | 8,059 | 5,536
Fair Value, Inputs, Level 3 [Member] | Foreclosed Real Estate [Member] |  |
Fair Value Asset Measured On Nonrecurring Basis [Line Items] |  |
Assets, Fair Value Disclosure | $ 1,501 | $ 1,627

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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=99377789&loc=d3e19207-110258 + Details
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