Note 10 - Warrant Liability - Valuation Techniques (Details) - Common Stock Purchase Warrants [Member]	Mar. 31, 2026	Dec. 31, 2025
Measurement Input, Expected Term [Member]
Derivative Liability, Measurement Input	3.72	3.97
Measurement Input, Risk Free Interest Rate [Member]
Derivative Liability, Measurement Input	0.0378	0.0358
Measurement Input, Price Volatility [Member]
Derivative Liability, Measurement Input	1.2462	1.2369
Measurement Input, Share Price [Member]
Derivative Liability, Measurement Input	4.28	4.8
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	0.05
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