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Note 10 - Fair Value of Financial Instruments - Financial Assets and Liabilities Reported Under the Fair Value Option (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Financial Assets at Fair Value Option |  | $ 30,500 |  | $ 30,500 |  | $ 30,400
Net loss from fair value adjustments |  | (1,159) | $ (1,115) | (1,537) | $ (2,102) |
Collateralized Mortgage Backed Securities [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 1,801 |  | 1,801 |  | 2,016
Net loss from fair value adjustments |  | (3) | (3) | (10) | 2 |
Other Securities [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 28,706 |  | 28,706 |  | 28,429
Net loss from fair value adjustments |  | 112 | 90 | 144 | 186 |
Junior Subordinated Debentures [Member] |  |  |  |  |  |
Financial Assets at Fair Value Option |  | 35,137 |  | 35,137 |  | $ 33,959
Net loss from fair value adjustments |  | (595) | 492 | (1,165) | 1,546 |
Financial Assets and Liabilities, Excluding Interest Rate Caps / Swaps [Member] |  |  |  |  |  |
Net loss from fair value adjustments | [1],[2] | $ (486) | $ 579 | $ (1,031) | $ 1,734 |
[1] | The net gain (loss) from fair value adjustments presented in the above table does not include net losses of $0.5 million and $3.8 million for the six months ended June 30, 2017 and 2016, respectively, from the change in the fair value of interest rate swaps.
[2] | The net gain (loss) from fair value adjustments presented in the above table does not include net losses of $0.7 million and $1.7 million for the three months ended June 30, 2017 and 2016, 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://www.xbrl.org/2003/role/presentationRef -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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