Note 12 - Fair Value - Unobservable Inputs (Details)	Jun. 30, 2026	May 18, 2026	May 11, 2026	Jan. 13, 2026	Dec. 31, 2025
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input	1.142				1.073
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Discount Rate [Member]
Derivative, measurement input	0.20				0.19
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input	0.04
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Minimum [Member]
Derivative, measurement input					0.035
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Maximum [Member]
Derivative, measurement input					0.036
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input	0				0
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input	0.21				0.38
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input	1.12				1.12
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input	0.30				0.20
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Default Rate [Member]
Derivative, measurement input	0.05				0.35
Embedded Derivative Financial Instruments [Member] \| Measurement Input, Probability of Held-to-maturity [Member]
Derivative, measurement input	0.65				0.45
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input		1.133
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Discount Rate [Member]
Derivative, measurement input		0.20
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input		0.039
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input		0
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input		0.41
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input		1.24
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input		0.30
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Default Rate [Member]
Derivative, measurement input		0.05
First 2025 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Probability of Held-to-maturity [Member]
Derivative, measurement input		0.65
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input		1.205
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Discount Rate [Member]
Derivative, measurement input		0.20
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Minimum [Member]
Derivative, measurement input		0.037
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Maximum [Member]
Derivative, measurement input		0.038
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input		0
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input		0.32
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input		0.74
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input		0.05
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Default Rate [Member]
Derivative, measurement input		0.05
The 2025 SSCPN Derivative Instrument [Member] \| Measurement Input, Probability of Held-to-maturity [Member]
Derivative, measurement input		0.90
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input			1.126
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Discount Rate [Member]
Derivative, measurement input			0.20
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input			0.038
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input			0
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input			0.43
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input			1.26
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input			0.30
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Default Rate [Member]
Derivative, measurement input			0.05
Second 2024 SSCPN Amendment Derivative Instrument [Member] \| Measurement Input, Probability of Held-to-maturity [Member]
Derivative, measurement input			0.65
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input			1.204
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Discount Rate [Member]
Derivative, measurement input			0.20
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Minimum [Member]
Derivative, measurement input			0.037
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Maximum [Member]
Derivative, measurement input			0.038
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input			0
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input			0.34
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input			0.76
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input			0.05
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Default Rate [Member]
Derivative, measurement input			0.05
Derivative Instrument Related to 2024 SSCP Notes [Member] \| Measurement Input, Probability of Held-to-maturity [Member]
Derivative, measurement input			0.90
New Avenue Warrant [Member] \| Measurement Input, Price Volatility [Member] \| Minimum [Member]
Derivative, measurement input	1.07				1.044
New Avenue Warrant [Member] \| Measurement Input, Price Volatility [Member] \| Maximum [Member]
Derivative, measurement input	1.154				1.19
New Avenue Warrant [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Minimum [Member]
Derivative, measurement input	0.04				0.035
New Avenue Warrant [Member] \| Measurement Input, Risk Free Interest Rate [Member] \| Maximum [Member]
Derivative, measurement input	0.041				0.036
New Avenue Warrant [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input	0				0
New Avenue Warrant [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input	1.09				0.5
New Avenue Warrant [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input	2				2.5
New Avenue Warrant [Member] \| Measurement Input, Probability of Change of Control [Member]
Derivative, measurement input	0.30				0.20
New Avenue Warrant [Member] \| Measurement Input, Probability of Dissolution [Member]
Derivative, measurement input	0.30				0.35
New Avenue Warrant [Member] \| Measurement Input, Probability of Held to Expiration [Member]
Derivative, measurement input	0.40				0.45
Tranche A Warrant [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input					1.24
Tranche A Warrant [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input					0.036
Tranche A Warrant [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input					0
Tranche A Warrant [Member] \| Measurement Input, Expected Term [Member]
Derivative, measurement input					0.46
Tranche A Warrant [Member] \| Measurement Input, Probability of NDA Acceptance [Member]
Derivative, measurement input					0
Tranche A Warrant [Member] \| Measurement Input, Probability of Dissolution [Member]
Derivative, measurement input					0.35
Tranche A Warrant [Member] \| Measurement Input, Probability of Fundamental Transaction [Member]
Derivative, measurement input					0
Tranche A Warrant [Member] \| Measurement Input, Probability of Held to Expiration [Member]
Derivative, measurement input					0.65
Common Stock Warrants [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input	1.009				1.043
Common Stock Warrants [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input	0.042				0.036
Common Stock Warrants [Member] \| Measurement Input, Expected Dividend Rate [Member]
Derivative, measurement input	0				0
Common Stock Warrants [Member] \| Measurement Input, Expected Term [Member]
Derivative, measurement input	3.25				3.75
Common Stock Warrants [Member] \| Measurement Input, Probability of Dissolution [Member]
Derivative, measurement input	0.30				0.35
Common Stock Warrants [Member] \| Measurement Input, Probability of Held to Expiration [Member]
Derivative, measurement input	0.70				0.65
Series A Warrants [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input	1.026			1.073
Series A Warrants [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input	0.041			0.0368
Series A Warrants [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input	0.42			0.46
Series A Warrants [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input	2.54			3
Series A Warrants [Member] \| Measurement Input, Probability Series A Trigger Announcement [Member]
Derivative, measurement input	0.50			0.35
Series A Warrants [Member] \| Measurement Input, Expected Stock Price Increase if Series A Announcement Occurs [Member]
Derivative, measurement input	0.35			0.35
Series A Warrants [Member] \| Measurement Input, Expected Stock Price Increase if Series A Announcement Does Not Occur [Member]
Derivative, measurement input	0.85			0.85
Series B Warrants [Member] \| Measurement Input, Price Volatility [Member]
Derivative, measurement input	1.026			1.073
Series B Warrants [Member] \| Measurement Input, Risk Free Interest Rate [Member]
Derivative, measurement input	0.041			0.0368
Series B Warrants [Member] \| Measurement Input, Expected Term [Member] \| Minimum [Member]
Derivative, measurement input	0.92			0.96
Series B Warrants [Member] \| Measurement Input, Expected Term [Member] \| Maximum [Member]
Derivative, measurement input	4.54			5
Series B Warrants [Member] \| Measurement Input, Probability of Series B Trigger Announcement [Member]
Derivative, measurement input	0.35			0.24
Series B Warrants [Member] \| Measurement Input, Expected Stock Price Increase if Series B Announcement Occurs [Member]
Derivative, measurement input	1			1
Series B Warrants [Member] \| Measurement Input, Expected Stock Price Increase if Series B Announcement Does Not Occur [Member]
Derivative, measurement input	0.95			0.95