Note 7 - Stock-based Compensation - Stock-based Compensation Plan Expenses (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share based compensation expense		$ 149,711	$ 160,992	$ 123,479
Tax benefit related to stock-based compensation	[1]	2,519	2,498	1,760
Cost of Sales [Member]
Share based compensation expense		4,545	4,721	3,543
Research and Development Expense [Member]
Share based compensation expense		36,611	35,355	26,030
Selling, General and Administrative Expenses [Member]
Share based compensation expense		$ 108,555	$ 120,916	$ 93,906

[1] Amount reflects the tax benefit related to stock-based compensation recorded for equity awards that are expected to generate tax deductions when they vest in future periods. Equity awards granted to the Company’s executive officers are subject to the tax deduction limitations set by Section 162(m) of the Internal Revenue Code.