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Note 19 - Stock-based Compensation - SARs Activity (Details) - Stock Appreciation Rights (SARs) [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Outstanding (in shares) |  | 340 | 440 |
Outstanding, aggregate intrinsic value | [1] | $ 7,923 | $ 9,774 | $ 6,297
Outstanding, weighted average fair value (in dollars per share) |  | $ 8.69 | $ 6.86 |
Outstanding, weighted average remaining contractual life (Year) |  | 5 years 2 months 12 days | 5 years 3 months 18 days | 4 years 8 months 12 days
Granted (in shares) |  | 25 | 42 |
Granted, aggregate intrinsic value | [1] |  | $ 0 |
Granted, weighted average fair value (in dollars per share) |  | $ 23.75 | $ 13.75 |
Exercised (in shares) |  | (28) | (142) |
Exercised, aggregate intrinsic value | [1] | $ 1,332 | $ 5,617 |
Exercised, weighted average fair value (in dollars per share) |  | $ 4.32 | $ 4.51 |
Forfeited (in shares) |  | 0 | 0 |
Outstanding (in shares) |  | 337 | 340 | 440
Outstanding, weighted average fair value (in dollars per share) |  | $ 10.18 | $ 8.69 | $ 6.86
Vested and exercisable (in shares) |  | 245 |  |
Vested and exercisable, aggregate intrinsic value | [1] | $ 6,799 |  |
Vested and exercisable, weighted average fair value (in dollars per share) |  | $ 7.77 |  |
Vested and exercisable, weighted average remaining contractual life (Year) |  | 4 years 2 months 12 days |  |
Unvested (in shares) |  | 92 |  |
Unvested, aggregate intrinsic value | [1] | $ 1,124 |  |
Unvested, weighted average exercise price (in dollars per share) |  | $ 16.58 |  |
Unvested, weighted average remaining contractual life (Year) |  | 3 years 4 months 24 days |  |
Vested in the current year (in shares) |  | 33 |  |
Vested in the current year, aggregate intrinsic value | [1] | $ 689 |  |
Vested in the current year, weighted average fair value (in dollars per share) |  | $ 11.24 |  |
Minimum [Member] |  |  |  |
Outstanding, exercise price (in dollars per share) |  | 25.76 | 19.44 |
Granted, exercise price (in dollars per share) |  | 75.21 | 47.95 |
Exercised, exercise price (in dollars per share) |  | 25.76 | 22.96 |
Outstanding, exercise price (in dollars per share) |  | 25.76 | 25.76 | 19.44
Vested and exercisable, exercise price (in dollars per share) |  | 25.76 |  |
Unvested, exercise price (in dollars per share) |  | 47.17 |  |
Vested in the current year, exercise price (in dollars per share) |  | 36.65 |  |
Maximum [Member] |  |  |  |
Outstanding, exercise price (in dollars per share) |  | 74.92 | 74.92 |
Granted, exercise price (in dollars per share) |  | 75.21 | 54.92 |
Exercised, exercise price (in dollars per share) |  | 40 | 40 |
Outstanding, exercise price (in dollars per share) |  | 75.21 | 74.92 | 74.92
Vested and exercisable, exercise price (in dollars per share) |  | 60.76 |  |
Unvested, exercise price (in dollars per share) |  | 75.21 |  |
Vested in the current year, exercise price (in dollars per share) |  | 60.76 |  |
Weighted Average [Member] |  |  |  |
Outstanding, exercise price (in dollars per share) |  | 43.41 | 38.11 |
Granted, exercise price (in dollars per share) |  | 72.21 | 49.2 |
Exercised, exercise price (in dollars per share) |  | 29.67 | 28.74 |
Outstanding, exercise price (in dollars per share) |  | 46.92 | $ 43.41 | $ 38.11
Vested and exercisable, exercise price (in dollars per share) |  | 42.28 |  |
Unvested, exercise price (in dollars per share) |  | 59.26 |  |
Vested in the current year, exercise price (in dollars per share) |  | $ 49.24 |  |
[1] | Aggregate intrinsic value for SARs is defined as the amount by which the current market price of the underlying stock exceeds the exercise or grant price.

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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