v3.26.1
Note 3 - Fair Value of Financial Instruments - Summary of Fair Value Measurements (Details) - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Senior Secured Note $ 567 $ 5,448
Warrant Liability 1,079 7,842
Total 1,646 13,290
Fair Value, Inputs, Level 1 [Member]    
Senior Secured Note 0 0
Warrant Liability 0 0
Total 0 0
Fair Value, Inputs, Level 2 [Member]    
Senior Secured Note 0 0
Warrant Liability 0 0
Total 0 0
Fair Value, Inputs, Level 3 [Member]    
Senior Secured Note 567 5,448
Warrant Liability 1,079 7,842
Total $ 1,646 $ 13,290