Note 3 - Going Concern and Management's Plans (Details Textual) $ in Thousands	1 Months Ended	3 Months Ended						9 Months Ended
	Jul. 31, 2025 USD ($) shares	Sep. 30, 2025 USD ($) shares	Jun. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Sep. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Net Income (Loss) Attributable to Parent		$ (28,085)	$ (10,631)	$ (4,045)	$ (2,749)	$ (12,024)	$ 10,219	$ (42,761)	$ (4,554)
Retained Earnings (Accumulated Deficit)		(889,371)						(889,371)		$ (846,610)
Proceeds from Issuance of Common Stock								0	$ 1,367
Cash and Cash Equivalent		204						204		1,779
Liabilities, Current		$ 21,901						$ 21,901		$ 5,717
ELOC Purchase Agreement [Member]
Agreement, Maximum Equity Value to be Issued	$ 500,000					$ 35,000
Stock Issuance Agreement, Shares Authorized (in shares) | shares	555,555,556
Debt Instrument, Convertible, Number of Equity Instruments	166,687,215
Stock Issued During Period, Shares, New Issues (in shares) | shares		21,100,000
Proceeds from Issuance of Common Stock		$ 13,400
Common Stock Purchase Agreement [Member]
Stock Issued During Period, Shares, New Issues (in shares) | shares	21,100,000
Proceeds from Issuance of Common Stock, Net	$ 13,400