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Note 11 - Deferred Compensation Plan - Summary of Deferred Compensation Plan (Details) - USD ($) $ in Thousands | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Deferred compensation plan assets | $ 101,905 | $ 92,586
Deferred compensation plan liabilities | 102,582 | 95,976
Other Long-term Assets [Member] |  |
Deferred compensation plan assets | 101,905 | 92,586
Accrued Compensation and Related Benefits [Member] |  |
Deferred compensation plan liabilities | 3,656 | 2,323
Other Long-term Liabilities [Member] |  |
Deferred compensation plan liabilities | 98,926 | 93,653
Cash Surrender Value [Member] |  |
Deferred compensation plan assets | 30,911 | 27,249
Mutual Funds and Money Market Funds, Fair Value [Member] |  |
Deferred compensation plan assets | $ 70,994 | $ 65,337

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements. Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References No definition available. + Details
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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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