Annual report [Section 13 and 15(d), not S-K Item 405]

Note 4 - Fair Value Measurement - Fair Value Hierarchies (Details)

v3.25.0.1
Note 4 - Fair Value Measurement - Fair Value Hierarchies (Details) - Fair Value, Recurring [Member] - USD ($)
Dec. 31, 2024
Dec. 31, 2023
Warrant liabilities $ 1 $ 366
Fair Value, Inputs, Level 1 [Member]    
Warrant liabilities 0 0
Fair Value, Inputs, Level 2 [Member]    
Warrant liabilities 0 0
Fair Value, Inputs, Level 3 [Member]    
Warrant liabilities $ 1 $ 366