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Note 12 - Fair Value Measurements - Quantitative Information About Level 3 Fair Value Measurements (Details) - Impaired Loans [Member] - Fair Value, Nonrecurring [Member] $ in Thousands | Sep. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
--- | --- | ---
Assets, Fair Value |  | $ 3,572 | $ 406
Fair Value, Inputs, Level 3 [Member] |  |  |
Assets, Fair Value |  | $ 3,572 | $ 406
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Cost to Sell [Member] |  |  |
Measurement input | [1] | 0.1000 | 0.1000
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] |  |  |
Measurement input | [1] | 6.50 |
Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Property Appraisals [Member] |  |  |
Assets, Fair Value |  | $ 2,205 | $ 406
Fair Value, Inputs, Level 3 [Member] | Valuation Technique, Discounted Cash Flow [Member] |  |  |
Assets, Fair Value |  | $ 1,367 |
[1] | Unobservable inputs were weighted by the relative fair value of the instruments.

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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=117815213&loc=d3e19207-110258 + Details
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