Note 6 - Fair Value Measurements - Schedule of Fair Value Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)	Sep. 30, 2025	Dec. 31, 2024
Derivative liabilities -Series A warrants	$ 123,000	$ 16,400,000
Total	123,000	16,400,000
Fair Value, Inputs, Level 1 [Member]
Derivative liabilities -Series A warrants	0	0
Total	0	0
Fair Value, Inputs, Level 2 [Member]
Derivative liabilities -Series A warrants	0	0
Total	0	0
Fair Value, Inputs, Level 3 [Member]
Derivative liabilities -Series A warrants	123,000	16,400,000
Total	$ 123,000	$ 16,400,000