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Note 8 - Options: Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value | $ | $ 77 | $ 31 | $ 141
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value | $ | $ 0 | $ 814 | $ 1,812
Range 1 |  |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit | $ 58.5 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit | $ 64.09 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding | shares | 29,575 |  |
Weighted Average Remaining Contractual Life (Years) | 8.49 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price | $ 63.15 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable | shares | 4,975 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price | $ 58.5 |  |
Range 2 |  |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit | 74.64 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit | $ 77.07 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding | shares | 48,310 |  |
Weighted Average Remaining Contractual Life (Years) | 6.39 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price | $ 76.6 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable | shares | 34,210 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price | $ 76.41 |  |
Range 3 |  |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit | 82.6 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit | $ 82.6 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding | shares | 20,100 |  |
Weighted Average Remaining Contractual Life (Years) | 7.78 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price | $ 82.6 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable | shares | 10,050 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price | $ 82.6 |  |
Range 4 |  |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit | 58.5 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit | $ 82.6 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding | shares | 97,985 |  |
Weighted Average Remaining Contractual Life (Years) | 7.31 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price | $ 73.77 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable | shares | 49,235 |  |
Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price | $ 75.86 |  |

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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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