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Note 4 - Fair Value Measurements and Other Liabilities (Details Textual) - USD ($)					3 Months Ended					5 Months Ended	6 Months Ended
	Jan. 08, 2026	Jun. 26, 2025	Jun. 18, 2025	Feb. 04, 2025	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 18, 2025	Mar. 31, 2025	Jun. 25, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Apr. 21, 2025	Feb. 05, 2025
Token Rights Agreement, Price per Token (in dollars per share)	$ 1
Class of Warrant or Right, Outstanding (in shares)					9	14					9		14
Common Stock, Par or Stated Value Per Share (in dollars per share)			$ 0.0001		$ 0.0001			$ 0.0001			$ 0.0001		$ 0.0001	$ 0.0001	$ 0.0001
Gain (Loss) on Settlement of Warrants					$ 0		$ 82,299,000				$ 0	$ 82,299,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements					$ 0	$ (6,482,902)
Derivative Financial Instruments, Liabilities [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements									$ 379,083
Series B Preferred Stock [Member]
Stock Issued During Period, Shares, Warrant Exchanges (in shares)			6,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share)			$ 0.0001		$ 0.0001			$ 0.0001			$ 0.0001		$ 0.0001
Preferred Stock, Convertible, Maximum Percentage Stock Outstanding Threshold			19.99%					19.99%
Stock Issued During Period, Value, Warrant Exchanges			$ 8,261,000
Gain (Loss) on Settlement of Warrants			82,299,000
Series B Preferred Stock [Member] \| Preferred Stock [Member]
Stock Issued During Period, Value, Warrant Exchanges			1
Series B Preferred Stock [Member] \| Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Warrant Exchanges			8,260,999
Incremental Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)				16
Class of Warrant or Right, Notes Issuable Upon Exercisable				$ 2,500,000
Warrants and Rights Outstanding			$ 90,560,000	100,800,000			$ 0	$ 90,560,000	81,360,000			$ 0	$ 0
Incremental Warrants [Member] \| Derivative Financial Instruments, Liabilities [Member]
Change in Fair Value of Derivative Liability								$ 9,200,000
Institutional Investor Warrants [Member]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements									$ 379,083
Senior Secured Convertible Note [Member]
Debt Instrument, Issued, Principal	$ 11,000,000
Proceeds from Issuance of Debt	$ 9,900,000
Debt Instrument, Convertible, Conversion Price (in dollars per share)	$ 0.8347
Debt Instrument, Convertible, Floor Conversion Price (in dollars per share)	$ 0.778
Debt Instrument, Face Amount				5,500,000
Debt Instrument, Term (Year)		2 years								1 year
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger		95.00%
Senior Secured Convertible Note and Incremental Warrants [Member]
Proceeds from Issuance of Debt				$ 4,963,750