Note 2 - Basis of Presentation, Principles of Consolidation, and Significant Accounting Policies and Liquidity - Schedule of Fair Value Measurements, Recurring and Nonrecurring (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Dec. 31, 2024
Warrant Liability Long Term [Member]
Balance	$ 16,830	$ 0
Warrants issued	30,585	46,855
Warrants exercised	(4,491)	(4,491)
Change in fair value - net	(1,591)	(1,031)
Balance	41,333	41,333
Fair Value, Recurring [Member] | Warrant Liability [Member]
Fair value of warrant liability	41,333	41,333	$ 0
Fair Value, Recurring [Member] | Warrant Liability [Member] | Fair Value, Inputs, Level 1 [Member]
Fair value of warrant liability	0	0	0
Fair Value, Recurring [Member] | Warrant Liability [Member] | Fair Value, Inputs, Level 2 [Member]
Fair value of warrant liability	0	0	0
Fair Value, Recurring [Member] | Warrant Liability [Member] | Fair Value, Inputs, Level 3 [Member]
Fair value of warrant liability	$ 41,333	$ 41,333	$ 0