Note 8 - Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Dividends Declared [Table Text Block]

	Year Ended December 31,
	2023		2022		2021
Dividend declared per share	$	4.00	$	3.00	$	2.40
Total amount	$	190,642	$	140,337	$	110,206