v3.26.1
Note 2 - Going Concern (Details Textual) - USD ($)
1 Months Ended 12 Months Ended
Mar. 12, 2026
Jan. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Feb. 03, 2026
Retained Earnings (Accumulated Deficit)     $ (111,615,000) $ (87,084,000)  
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation     (8,194,000) (6,155,000)  
Proceeds from Warrant Exercises     $ 9,088,000 $ 36,000  
Subsequent Event [Member]          
Proceeds from Warrant Exercises   $ 150,000      
Proceeds from Issuance of Private Placement $ 2,250,000        
Subsequent Event [Member] | Private Placement [Member]          
Equity Offering, Additional Amount $ 18,000,000        
Subsequent Event [Member] | At-the-market ("ATM") Offering Program [Member]          
Equity Offering, Maximum Amount         $ 7,434,266