Note 10 - Common Stock Warrants and Warrant Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Non-cash gain on changes in fair value of warrant liabilities	$ (9,292)		$ (0)	$ (5,846,899)	$ (0)
The January 2026 Warrants [Member]
Non-cash gain on changes in fair value of warrant liabilities		$ 5,300,000
Warrant Liability [Member]
Warrant liabilities		$ 639,071		639,071
Non-cash gain on changes in fair value of warrant liabilities				(5,846,899)
Warrant liabilities	$ 0			0
Warrant Liability [Member] \| The January 2026 Warrants [Member]
Fair value of October 2025 Pre-Funded Warrants upon issuance				5,436,649
Warrant Liability [Member] \| The October 2025 and January 2026 Pre-Funded Warrants [Member]
Reclassification of October 2025 and January 2026 Pre-Funded Warrant liabilities to equity during period				(204,398)
Warrant Liability [Member] \| October 2025 Pre-Funded Warrants [Member]
Exercise of October 2025 Pre-Funded Warrants				$ (24,423)