Note 7 - Income and Mining Taxes - Schedule of Domestic and Foreign Components of Income (Loss) Before Income and Mining Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Line Items]
Total	$ 479,179	$ 66,216	$ (82,995)
United States
Income Tax Disclosure [Line Items]
Total	340,021	121,273	43,745
Canada
Income Tax Disclosure [Line Items]
Total	141,327	(52,568)	(122,637)
Mexico
Income Tax Disclosure [Line Items]
Total	$ (2,169)	$ (2,489)	$ (4,103)