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Note 6 - Fair Value Measurements - Schedule of Fair Value Liabilities Measured on Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Derivative liabilities -Series A warrants $ 128,000 $ 16,400,000
Total 128,000 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 128,000 16,400,000
Total $ 128,000 $ 16,400,000