v3.26.1
Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants - Schedule of Convertible Debt (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
$ / shares
Principal amount | $ $ 5,050,000
January Debenture [Member]  
Issue date Jan. 26, 2026
Principal amount | $ $ 600,000
Maturity Jan. 26, 2027
Debt Instrument, Interest Rate, Stated Percentage 12.00%
Debt Instrument, Default Rate 18.00%
Fixed conversion price (in dollars per share) $ 18.75
Variable conversion price 85.00%
January Debenture [Member] | Minimum [Member]  
Fixed conversion price (in dollars per share) $ 1.42
February Debenture [Member]  
Issue date Feb. 19, 2026
Principal amount | $ $ 750,000
Maturity Feb. 19, 2027
Debt Instrument, Interest Rate, Stated Percentage 12.00%
Debt Instrument, Default Rate 18.00%
Fixed conversion price (in dollars per share) $ 18.75
Variable conversion price 85.00%
February Debenture [Member] | Minimum [Member]  
Fixed conversion price (in dollars per share) $ 1.45
March Debenture [Member]  
Issue date Mar. 10, 2026
Principal amount | $ $ 3,000,000
Maturity Mar. 10, 2027
Debt Instrument, Interest Rate, Stated Percentage 12.00%
Debt Instrument, Default Rate 18.00%
Fixed conversion price (in dollars per share) $ 18.75
Variable conversion price 85.00%
March Debenture [Member] | Minimum [Member]  
Fixed conversion price (in dollars per share) $ 1.39
April 2026 Debenture [Member]  
Issue date Apr. 28, 2026
Principal amount | $ $ 700,000
Maturity Apr. 28, 2027
Debt Instrument, Interest Rate, Stated Percentage 12.00%
Debt Instrument, Default Rate 18.00%
Fixed conversion price (in dollars per share) $ 18.75
Variable conversion price 85.00%
April 2026 Debenture [Member] | Minimum [Member]  
Fixed conversion price (in dollars per share) $ 1.28