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Note 9 - Options: Schedule of Share-based Compensation, Stock Options, Activity (Details) - shares shares in Thousands | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures | 28 |  | 39
Price Range Per Share Granted | 58.50 - 58.50 | - - - | 49.18 - 50.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period | 3 | 7 | 4
Price Range Per Share Expired | 49.18 - 49.18 | 26.58 - 49.18 | 25.59 - 49.18
Price Range Per Share Exercised | 24.00 - 49.18 | 21.68 - 49.18 | 18.00 - 33.30
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | 75 | 62 | 91
Price Range Per Share Outstanding | 24.00 - 58.50 | 24.00 - 50.72 | 21.68 - 50.72
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number | 36 | 41 | 48
Price Range Per Share Total Exercisable | 24.00 - 50.72 | 24.00 - 50.72 | 21.68 - 33.30
Common Stock |  |  |
Common stock issued upon exercise of employee stock options, shares | 13 | 22 | 35

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Net number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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