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Note 11 - Fair Value of Financial Instruments - Financial Assets and Liabilities Reported Under the Fair Value Option (Details) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018
Financial Assets at Fair Value Option |  | $ 14,200,000 |  | $ 14,200,000 |  | $ 13,800,000
Net loss from fair value adjustments |  | (1,956,000) | $ (267,000) | (4,036,000) | $ (367,000) |
Collateralized Mortgage Backed Securities [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 848,000 |  | 848,000 |  | 967,000
Net loss from fair value adjustments |  | 1,000 | 0 | 2,000 | (11,000) |
Other Securities [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 13,346,000 |  | 13,346,000 |  | 12,843,000
Net loss from fair value adjustments |  | 184,000 | (62,000) | 363,000 | (200,000) |
Junior Subordinated Debentures [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 43,414,000 |  | 43,414,000 |  | $ 41,849,000
Net loss from fair value adjustments |  | (544,000) | (867,000) | (1,754,000) | (2,548,000) |
Financial Assets and Liabilities, Excluding Interest Rate Caps / Swaps [Member] |  |  |  |  |  |
Net loss from fair value adjustments | [1],[2] | $ (359,000) | $ (929,000) | $ (1,389,000) | $ (2,759,000) |
[1] | The net loss from fair value adjustments presented in the above table does not include net (losses) gains of ($1.6) million and $0.7 million for the three months ended June 30, 2019 and 2018, respectively, from the change in the fair value of interest rate swaps.
[2] | The net loss from fair value adjustments presented in the above table does not include net (losses) gains of ($2.6) million and $2.4 million for the six months ended June 30, 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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