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Note 11 - Fair Value of Financial Instruments - Financial Assets and Liabilities Reported Under the Fair Value Option (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Financial Assets at Fair Value Option |  | $ 14,000 |  | $ 13,800
Net loss from fair value adjustments |  | (2,080) | $ (100) |
Collateralized Mortgage Backed Securities [Member] |  |  |  |
Financial Assets at Fair Value Option |  | 934 |  | 967
Net loss from fair value adjustments |  | 1 | (11) |
Other Securities [Member] |  |  |  |
Financial Assets at Fair Value Option |  | 13,091 |  | 12,843
Net loss from fair value adjustments |  | 179 | (138) |
Junior Subordinated Debentures [Member] |  |  |  |
Financial Assets at Fair Value Option |  | 42,941 |  | $ 41,849
Net loss from fair value adjustments |  | (1,210) | (1,681) |
Financial Assets and Liabilities, Excluding Interest Rate Caps / Swaps [Member] |  |  |  |
Net loss from fair value adjustments | [1] | $ (1,030) | $ (1,830) |
[1] | The net loss from fair value adjustments presented in the above table does not include net (losses) gains of ($1.1) million and $1.7 million for the three months ended March 31, 2019 and 2018, respectively, from the change in the fair value of interest rate swaps.

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- Definition The fair value option of financial assets. + References No definition available. + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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