Note 12 - Deferred Compensation Plan - Summary of Deferred Compensation Plan (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Deferred compensation plan assets	$ 89,324	$ 78,381
Deferred compensation plan liabilities	92,140	81,287
Other Long-term Assets [Member]
Deferred compensation plan assets	89,324	78,381
Accrued Compensation and Related Benefits [Member]
Deferred compensation plan liabilities	8,012	384
Other Long-term Liabilities [Member]
Deferred compensation plan liabilities	84,128	80,903
Cash Surrender Value [Member]
Deferred compensation plan assets	27,687	23,545
Mutual Funds and Money Market Funds, Fair Value [Member]
Deferred compensation plan assets	$ 61,637	$ 54,836