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Note 12 - Fair Value Measurements - Valuation Assumptions (Details)
Jun. 30, 2025
Measurement Input, Share Price [Member] | June 2023 Warrants Tranche A [Member]  
Warrants and Rights Outstanding, Measurement Input 2.18
Measurement Input, Share Price [Member] | Other Warrants [Member]  
Warrants and Rights Outstanding, Measurement Input 2.18 [1]
Measurement Input, Expected Term [Member] | June 2023 Warrants Tranche A [Member]  
Warrants and Rights Outstanding, Measurement Input 2.9
Measurement Input, Expected Term [Member] | Other Warrants [Member] | Minimum [Member]  
Warrants and Rights Outstanding, Measurement Input 1.6 [1]
Measurement Input, Expected Term [Member] | Other Warrants [Member] | Maximum [Member]  
Warrants and Rights Outstanding, Measurement Input 2.2 [1]
Measurement Input, Price Volatility [Member] | June 2023 Warrants Tranche A [Member]  
Warrants and Rights Outstanding, Measurement Input 0.858
Measurement Input, Price Volatility [Member] | Other Warrants [Member] | Minimum [Member]  
Warrants and Rights Outstanding, Measurement Input 0.754 [1]
Measurement Input, Price Volatility [Member] | Other Warrants [Member] | Maximum [Member]  
Warrants and Rights Outstanding, Measurement Input 0.781 [1]
Measurement Input, Risk Free Interest Rate [Member] | June 2023 Warrants Tranche A [Member]  
Warrants and Rights Outstanding, Measurement Input 0.037
Measurement Input, Risk Free Interest Rate [Member] | Other Warrants [Member]  
Warrants and Rights Outstanding, Measurement Input 0.037 [1]
Measurement Input, Expected Dividend Rate [Member] | June 2023 Warrants Tranche A [Member]  
Warrants and Rights Outstanding, Measurement Input 0
Measurement Input, Expected Dividend Rate [Member] | Other Warrants [Member]  
Warrants and Rights Outstanding, Measurement Input 0 [1]
[1] Includes all liability classified warrants and prefunded warrants except the June 2023 Tranche A Warrants (see Note 16 - Warrants for further information).