Note 4 - Earnings (Loss) Per Share - Summary of Computation of Basic and Diluted Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Net income (loss), basic	$ 21,631	$ 24,890
Add: Loss on buy back of 2029 Convertible Notes	0	32
Net income (loss), diluted	$ 21,631	$ 31,781
Weighted average common shares outstanding, basic (in shares)	777,154,808	694,622,466	746,136,135	699,675,944
Stock options	2,764,451	76,922
Dilutive potential shares	2,764,451	303,741,170
Weighted average common shares outstanding, diluted	779,919,259	998,363,636	746,136,135	699,675,944
Income (loss) per share, basic	$ 0.03	$ 0.04	$ (0.26)	$ (0.1)
Income (loss) per share, diluted	$ 0.03	$ 0.03	$ (0.26)	$ (0.1)
The 2025 Notes [Member]
Add: Interest on Notes	$ 0	$ 1
Notes	0	48,295
The 2029 Convertible Notes [Member]
Add: Interest on Notes	$ 0	$ 6,858
Notes	0	303,607,464
The 2033 Senior Notes [Member]
Notes	0	8,489