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Note 10 - Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Balance, beginning of period | $ 7,444 |  |
Net other comprehensive income (loss) |  | $ (32) | $ 2,166
Balance, end of period |  | 7,444 |
Cumulative effect adjustment – ASU 2016-01 | (7,444) |  |
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] |  |  |
Balance, beginning of period | 7,444 | 7,476 |
Other comprehensive income before reclassifications |  | 2,001 |
Amounts reclassified from accumulated other comprehensive income, net of tax benefit |  | (2,033) |
Net other comprehensive income (loss) | (7,444) | (32) |
Balance, end of period |  | $ 7,444 | $ 7,476

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- Definition The amount of adjustment to equity related to reclassification of gain (loss) unrealized on equity securities from accumulated other comprehensive income to retained earnings. + References No definition available. + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=114867106&loc=d3e681-108580 + Details
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