v3.26.1
Note 3 - Fair Value of Financial Instruments - Summary of Fair Value Measurements -10-Q (Details) - Fair Value, Recurring [Member] - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Senior Secured Note (unpaid principal of $15,000) $ 2,157 $ 5,448  
Warrant Liabilities 4,699 7,842  
Total 6,856 13,290 $ 6,759
Fair Value, Inputs, Level 1 [Member]      
Senior Secured Note (unpaid principal of $15,000) 0 0  
Warrant Liabilities 0 0  
Total 0 0 0
Fair Value, Inputs, Level 2 [Member]      
Senior Secured Note (unpaid principal of $15,000) 0 0  
Warrant Liabilities 0 0  
Total 0 0 0
Fair Value, Inputs, Level 3 [Member]      
Senior Secured Note (unpaid principal of $15,000) 2,157 5,448  
Warrant Liabilities 4,699 7,842  
Total $ 6,856 $ 13,290 $ 6,759