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Note 8 - Options: Schedule of Share-based Compensation, Stock Options, Activity (Details) - shares shares in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures | 21 | 0 | 26
Price Range Per Share Granted | 82.60 - 82.60 | - - - | 77.05 - 77.05
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period | 2 | 3 | 1
Price Range Per Share Expired | 33.30 - 77.05 | 74.64 - 77.05 | 58.50 - 77.05
Price Range Per Share Exercised | 33.30 - 77.05 | 26.52 - 77.05 | 26.52 - 74.64
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number | 67 | 52 | 69
Price Range Per Share Outstanding | 33.30 - 77.05 | 33.30 - 77.05 | 26.52 - 77.05
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number | 40 | 34 | 33
Price Range Per Share Total Exercisable | 33.30 - 77.05 | 33.30 - 77.05 | 26.52 - 74.64
Common Stock |  |  |
Common stock issued upon exercise of employee stock options, shares | 4 | 14 | 8

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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