Note 6 - Income Taxes - Uncertain Tax Positions and Income Tax Payable (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Tax liabilities for uncertain tax positions	$ 35,468	$ 29,283
Income tax payable	29,009	11,480
Income tax receivable	$ 1,502	$ 1,322