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Fair Value - Narratives (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Impaired loans carrying amount | $ 270,000 |  |
other real estate owned with an allowance at carrying value before valuation allowance | 0 | $ 1,200,000 |
Impaired loans, valuation allowance | 27,000 |  |
Provision for Loan and Lease Losses | 0 | 26,000 |
Other real estate owned at carrying value | 1,226,000 | 2,351,000 | $ 3,895,000
Real Estate Acquired Through Foreclosure Fair Value | 0 | 900,000 |
Real Estate Owned, Valuation Allowance, Valuation Increase | 27,000 | 333,000 |
Other Real Estate, Valuation Adjustments | 27,000 | 333,000 |
Fair value of mortgage servicing rights | $ 420,000 | 513,000 |
Fair Value, Measurements, Nonrecurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Real Estate Acquired Through Foreclosure Fair Value |  | 916,000 |
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Real Estate Acquired Through Foreclosure Fair Value |  | $ 916,000 |

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- Definition Amount of increase (decrease) of allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Valuation adjustments made to other real estate not separately disclosed, including, but not limited to, real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. This excludes real estate assets taken in settlement of troubled loans through surrender or foreclosure. + References No definition available. + Details
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