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Note 6 - Investments Net Gains (Losses) on Investments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Gain (Loss) on Securities [Line Items] |  |  |  |
Fixed-maturities available for sale, net realized gain (loss) | [1] | $ 11,262 | $ (11,256) | $ (3,014)
Trading securities, net realized gain (loss) |  | (303) | (1,840) | (5,995)
Equity securities, net realized gain (loss) |  | (719) | 532 | 368
Realized Gains (Losses) on Investments, Net |  | 10,843 | (12,094) | (8,603)
Other than Temporary Impairment Losses, Investments |  | 0 | (1,744) | (1,420)
Net unrealized gains (losses) on trading securities | [2] | 33,220 | (27,287) | 13,230
Total net gains (losses) on investments |  | 44,063 | (41,125) | 3,207
Net unrealized gains (losses) on investments still held |  | 28,078 | (24,720) | 8,827
Other investments |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Short-term investments, net realized gain (loss) |  | 603 | 470 | 38
Other Investments, Change in Unrealized Holding Gain (Loss) |  | (174) | 447 | (118)
Fixed-maturities available for sale |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Gross investment gains from sales and redemptions |  | 17,663 | 1,986 | 6,052
Gross investment losses from sales and redemptions |  | (6,401) | (13,242) | (9,066)
Trading securities |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Trading Securities, Change in Unrealized Holding Gain (Loss) |  | 16,346 | (16,281) | 8,945
Equity securities |  |  |  |
Gain (Loss) on Securities [Line Items] |  |  |  |
Equity Securities, Change in Unrealized Holding Gain (Loss) | [3] | $ 11,906 | $ (8,886) | $ 0
[1] | Components of net realized gains (losses) on fixed-maturities available for sale include:
| Year Ended December 31,
(In thousands) | 2019 |  | 2018 |  | 2017
Gross investment gains from sales and redemptions | $ | 17,663 |  |  | $ | 1,986 |  |  | $ | 6,052 |
Gross investment losses from sales and redemptions | (6,401 | ) |  | (13,242 | ) |  | (9,066 | )
[2] | These amounts include unrealized gains (losses) on investment securities other than securities available for sale. For 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.
[3] | 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.

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