v3.26.1
Note 9 - Stockholders' Equity (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 4 Months Ended 12 Months Ended
Nov. 04, 2025
Mar. 03, 2025
Feb. 27, 2025
Jun. 11, 2024
Jun. 30, 2024
Jan. 31, 2024
Mar. 31, 2026
Sep. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 30, 2025
Preferred Stock, Shares Authorized (in shares)             5,000,000   5,000,000 5,000,000  
Preferred Stock, Par or Stated Value Per Share (in dollars per share)             $ 0.0001   $ 0.0001 $ 0.0001  
Preferred Stock, Shares Outstanding, Ending Balance (in shares)             0   0 0  
Common Stock, Shares Authorized (in shares)             350,000,000   350,000,000 350,000,000 250,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share)             $ 0.0001   $ 0.0001 $ 0.0001  
Common Stock, Increase in Shares Authorized (in shares)       100,000,000              
Dividends             $ 0   $ 0    
Class of Warrant or Right, Expirations in Period (in shares)   29,150 100,532                
Class of Warrant or Right, Outstanding (in shares)                 10,914    
June 2024 Offering [Member]                      
Stock Issued During Period, Shares, New Issues (in shares)         50,000,000     50,000,000      
Shares Issued, Price Per Share (in dollars per share)         $ 0.8     $ 0.8      
Proceeds from Issuance or Sale of Equity               $ 40,000      
Stock Issued During Period, Value, New Issues         $ 40,000         $ 37,545  
Proceeds from Issuance of Common Stock         $ 37,500     $ 37,500 $ 0 37,545  
RA Capital Healthcare Fund 2024 [Member]                      
Stock Issued During Period, Shares, New Issues (in shares)           15,384,615          
Shares Issued, Price Per Share (in dollars per share)           $ 0.65          
Stock Issued During Period, Value, New Issues                   9,945  
Proceeds from Issuance of Common Stock           $ 9,900     $ 0 $ 9,945  
Gross Proceeds from Issuance of Common Stock           $ 10,000          
License Agreement and Purchase Agreement [Member]                      
Stock Issued During Period, Shares, New Issues (in shares) 11,111,111                    
Shares Issued, Price Per Share (in dollars per share) $ 0.45                    
Proceeds from Issuance or Sale of Equity $ 5,000                    
Premium Paid for Issuance of Equity $ 800