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Fair Value Measurements: Fair Value Measurements, Nonrecurring, Valuation Techniques (Details) - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands | Dec. 31, 2018 | Sep. 30, 2018
--- | --- | ---
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Assets, estimated fair value, nonrecurring | $ 2,470 | $ 2,139
Impaired loans |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Assets, estimated fair value, nonrecurring | 444 | 226
Nonrecurring | Impaired loans | Market Approach Valuation Technique |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Assets, estimated fair value, nonrecurring | 444 | 226
Nonrecurring | OREO and other repossessed assets | Market Approach Valuation Technique |  |
Fair Value Inputs, Assets, Quantitative Information [Line Items] |  |
Assets, estimated fair value, nonrecurring | $ 2,026 | $ 1,913

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- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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