v3.25.4
Note 1 - Description of Business (Details Textual)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Dec. 01, 2025
USD ($)
Nov. 19, 2025
USD ($)
$ / shares
shares
Nov. 18, 2025
USD ($)
$ / shares
shares
Nov. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Nov. 01, 2024
USD ($)
Oct. 31, 2024
USD ($)
Operating Income (Loss)           $ (6,446) $ (18,845)      
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation           (8,001) (18,047)      
Cash and Cash Equivalents, at Carrying Value         $ 31,741 31,740 31,741      
Percentage of Workforce       25.00%            
Savings From Reduction in Workforce       $ 4,300            
Restructuring Charges         $ 600          
Number of Directors                 5 8
Board of Directors, Annual Cash Compensation, Liability                 $ 100 $ 500
Operating Expenses           39,490 $ 48,205 $ 53,700    
Authorized Value Of Securities Registered and Sold $ 100,000                  
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]         Other Operating Income (Expense), Net          
Underwriting Agreement [Member]                    
Stock Issued During Period, Shares, New Issues (in shares) | shares   2,762,431 2,762,431              
Shares Issued, Price Per Share (in dollars per share) | $ / shares   $ 3.62 $ 3.62              
Proceeds from Issuance of Common Stock   $ 9,100 $ 9,100              
Maximum [Member]                    
Operating Expenses           $ 40,000