Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Schedule of Deferred Compensation Plan [Table Text Block]

	December 31,
	2024		2023
Deferred compensation plan asset components:
Cash surrender value of corporate-owned life insurance policies	$	27,249	$	23,545
Fair value of mutual funds and money market funds		65,337		54,836
Total	$	92,586	$	78,381
Deferred compensation plan assets reported in:
Other long-term assets	$	92,586	$	78,381
Deferred compensation plan liabilities reported in:
Accrued compensation and related benefits	$	2,323	$	384
Other long-term liabilities		93,653		80,903
Total	$	95,976	$	81,287