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Note 2 - Debt Securities (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase |  |  |  | $ (27,507) | $ 65 |
Number of Securities in Unrealized Loss Position | 14 |  |  | 14 |  | 90
Percentage of Combined Depreciation of Combined Reported Value of Aggregate Securities Portfolio | 0.11% |  |  | 0.11% |  | 0.74%
Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings, Total | $ 0 |  | $ 0 | $ 0 | $ 0 |
Security Owned and Pledged as Collateral, Fair Value, Total | $ 25,360 |  |  | $ 25,360 |  | $ 38,250
Wholesale Repurchase Agreements [Member] |  |  |  |  |  |
Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase |  | $ (25,000) |  |  |  |

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- Definition Amount of other-than-temporary impairment (OTTI) on investment in debt security, recognized in earnings. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 8A -URI http://asc.fasb.org/extlink&oid=118954083&loc=SL6284422-111562 + Details
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