v3.25.2
Note 2 - Going Concern (Details Textual) - USD ($)
3 Months Ended 5 Months Ended 6 Months Ended
Apr. 17, 2025
Jan. 29, 2025
Jan. 27, 2025
Jun. 30, 2025
Jun. 30, 2024
Mar. 31, 2024
Jul. 29, 2024
Jun. 30, 2025
Jan. 28, 2025
Dec. 31, 2024
Aug. 14, 2024
Aug. 14, 2023
Revenue from Contract with Customer, Excluding Assessed Tax               $ 0        
Cash and Cash Equivalent       $ 2,910,000       $ 2,910,000   $ 1,443,000    
Third Tranche Notes, Warrants [Member]                        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                 862,699   862,699,000,000  
Third Tranche Notes [Member]                        
Debt Instrument, Face Amount                 $ 5,400,000      
Debt Instrument, Original Issuance Discount                 8.00%      
Debt Instrument, Unamortized Discount                 $ 435,000      
Debt Issuance Costs, Gross                 400,000      
Long-Term Debt, Gross                 $ 5,000,000      
RD Purchase Agreement [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)     1,215,278                  
Shares Issued, Price Per Share (in dollars per share)     $ 2.88                  
Stock Issued During Period, Value, New Issues     $ 3,255,000                  
Proceeds from Issuance or Sale of Equity   $ 3,255,000 3,500,000                  
Payments of Stock Issuance Costs     $ 200,000                  
ATM Offering [Member]                        
Stock Issued During Period, Shares, New Issues (in shares) 399,078,000,000           385,515 399,078        
Stock Issued During Period, Value, New Issues       $ 1,012,000 $ 1,228,000 $ 179,000   $ 30,000.00        
Equity Offering, Maximum Offering Amount $ 20,000,000                     $ 4,900,000
Proceeds from Issuance or Sale of Equity 1,040,000.00                      
Payments of Stock Issuance Costs $ 30,000.00