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Note 10 - Options: Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions (Tables) | 12 Months Ended
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Dec. 31, 2018
Tables/Schedules |
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions |
|  | Years ended December 31,
|  | 2018 |  |  | 2017 |  |  | 2016
Expected dividend amount per quarter | $ | 0.2875 |  | $ | - |  | $ | 0.2775
Expected stock price volatility |  | 27.5% |  |  | - |  |  | 28.0%
Risk-free interest rate |  | 2.57% |  |  | - |  |  | 1.30%
Expected life of options |  | 4.9 years |  |  | - |  |  | 4.7 years

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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