Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2025

Notes Tables

Schedule of Deferred Compensation Plan [Table Text Block]

	December 31,
	2025		2024
Deferred compensation plan asset components:
Cash surrender value of corporate-owned life insurance policies	$	31,612	$	27,249
Fair value of mutual funds and money market funds		75,484		65,337
Total	$	107,096	$	92,586
Deferred compensation plan assets reported in:
Other long-term assets	$	107,096	$	92,586
Deferred compensation plan liabilities reported in:
Accrued compensation and related benefits	$	3,707	$	2,323
Other long-term liabilities		103,954		93,653
Total	$	107,661	$	95,976