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Note 3 - Investments: Available-for-sale Securities (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
Details |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | $ 8 us-gaap_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2 |
Available-for-sale Securities, Gross Unrealized Gain (Loss) | 2 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGainLoss | 14 us-gaap_AvailableForSaleSecuritiesGrossUnrealizedGainLoss
Available-for-sale Securities, Income Tax Expense on Change in Unrealized Holding Gain (Loss) | (1)us-gaap_AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss | (6)us-gaap_AvailableForSaleSecuritiesIncomeTaxExpenseOnChangeInUnrealizedHoldingGainOrLoss
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | $ 9 us-gaap_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2 | $ 8 us-gaap_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses2

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- Definition Amount of the excess of amortized cost basis over fair value of securities in a loss position and categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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- Definition The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
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- Definition This item represents the tax effects occurring during the period which are related to the net unrealized gain (loss) resulting from changes in the fair [carrying] value during the period of available-for-sale securities. Such tax affects would have been charged or credited directly to other comprehensive income or to related components of shareholders' equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 11 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=18498875&loc=d3e39076-109324 + Details
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