Note 11 - Warrant Liability - Valuation Techniques (Details) - Common Stock Purchase Warrants [Member]	Jun. 30, 2025	Dec. 31, 2024
Measurement Input, Expected Term [Member]
Derivative Liability, Measurement Input	4.47	4.97
Measurement Input, Risk Free Interest Rate [Member]
Derivative Liability, Measurement Input	0.0369	0.0429
Measurement Input, Price Volatility [Member]
Derivative Liability, Measurement Input	0.9205	0.9671
Measurement Input, Share Price [Member]
Derivative Liability, Measurement Input	4.85	25.2
Strike Price [Member] \| Minimum [Member]
Derivative Liability, Measurement Input	19.2	19.2
Probability of Completing a Change in Control [Member]
Derivative Liability, Measurement Input	0.05	0.20
Volatility if Change in Control Occurs [Member]
Derivative Liability, Measurement Input	1	1
Measurement Input, Expected Dividend Rate [Member]
Derivative Liability, Measurement Input	0	0