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Note 5 - Investments Net Gains (Losses) on Investments and Other Financial Instruments (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Other gains (losses), net realized gain (loss) |  | $ 11 | $ 7 | $ 46 | $ 25
Net realized gains (losses) on investments |  | (4,447) | (32) | (8,977) | (9,393)
Other-than-temporary impairment losses |  | (900) | 0 | (1,744) | (1,000)
Unrealized Gain (Loss) on Securities | [1] | 1,405 | 2,353 | (17,132) | 14,517
Total net gains (losses) on investments |  | (3,942) | 2,321 | (27,853) | 4,124
Net gains (losses) on other financial instruments |  | (538) | 159 | (2,918) | 836
Net gains (losses) on investments and other financial instruments |  | (4,480) | 2,480 | (30,771) | 4,960
Fixed maturities |  |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Fixed maturities available for sale, net realized gain (loss) | [2] | (4,219) | 137 | (9,030) | (3,552)
Gross investment gains from sales and redemptions |  | 814 | 419 | 1,831 | 5,150
Gross investment losses from sales and redemptions |  | (5,033) | (282) | (10,861) | (8,702)
Equity securities |  |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Equity securities, net realized gain (loss) |  | (69) | 33 | 571 | 418
Trading Securities |  |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Trading securities, net realized gain (loss) |  | (260) | (223) | (910) | (6,266)
Short-term Investments |  |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Short-term investments, net realized gain (loss) |  | 7 | 14 | 0 | (18)
Other invested assets |  |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |  |
Other invested assets, net realized gain (loss) |  | $ 83 | $ 0 | $ 346 | $ 0
[1] | These amounts include unrealized gains (losses) on investment securities other than securities available for sale. For the three and nine months ended September 30, 2017, the unrealized gains (losses) on investments exclude the net change in unrealized gains and losses on equity securities. Prior to the implementation of the update to the standard for the accounting of financial instruments effective January 1, 2018, the unrealized gains (losses) associated with equity securities were classified in accumulated other comprehensive income.
[2] | Components of net realized gains (losses) on fixed-maturities available for sale include:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(In thousands) | 2018 |  | 2017 |  | 2018 |  | 2017
Gross investment gains from sales and redemptions | $ | 814 |  |  | $ | 419 |  |  | $ | 1,831 |  |  | $ | 5,150 |
Gross investment losses from sales and redemptions | (5,033 | ) |  | (282 | ) |  | (10,861 | ) |  | (8,702 | )

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- Definition This concept represents the gains and losses on investments and other financial instruments for the period excluding the impact of changes in the present value of insurance claims and recoveries on insured credit derivatives and VIEs, based on the company's ongoing insurance loss monitoring, which are a component of segment expenses. Also includes other than temporarily impaired losses recognized in earnings. + References No definition available. + Details
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- Definition This amount represents the net realized gains (losses) on all fixed-maturities, equity, trading, short-term, and other-invested assets securities, excluding other-than-temporary impairments and net unrealized gains (losses) on investment securities. + References No definition available. + Details
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- Definition The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income. + 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=109979856&loc=SL6284422-111562 + Details
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