v3.26.1
Note 4 - Fair Value Measurements (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2026
Apr. 21, 2026
Mar. 31, 2026
Mar. 27, 2026
Apr. 28, 2025
Jun. 30, 2026
Apr. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) 4,135,911       1,199,295 4,135,911       4,135,911   4,135,911
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)         $ 0.85              
Warrants and Rights Outstanding $ 0         $ 0       $ 0   $ 0
Put Option Agreement, Covenant, Shares Repurchased (in shares) 1,150         1,150       1,150    
Stock Issued During Period, Value, New Issues                 $ 0   $ 60,000  
Series D Convertible Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)     7,583 2,150                
Proceeds from Issuance of Preferred Stock and Preference Stock       $ 1,000,000       $ 1,000,000        
Proceeds from Issuance of Preferred Stock and Preference Stock, Net       $ 900,000       $ 900,000        
Put Option Agreement, Covenant, Shares Repurchased (in shares)       1,150                
Put Option Agreement, Covenant, Price of Repurchased Shares (in dollars per share)       $ 1,000                
Put Option Agreement, Covenant, Maximum Purchase Price       $ 1,150,000                
Proceeds from Issuance of Convertible Preferred Stock       8,000,000           $ 900,000 $ 0  
Put Option, Fair Value       $ 60,000.00                
Series C Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                   2,625    
Stock Issued During Period, Value, New Issues                   $ 1,861,125    
Series C Preferred Stock [Member] | OID Notes [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)             240          
Stock Issued During Period, Value, New Issues             $ 0          
Series D Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                   9,733    
Stock Issued During Period, Value, New Issues                   $ 7,387,347    
Series D Preferred Stock [Member] | Preferred Equity Financing [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                   2,150    
Series D Preferred Stock [Member] | OID Notes [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                   7,583    
Series E Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues (in shares)                   684    
Stock Issued During Period, Value, New Issues                   $ 519,156    
Series F Preferred Stock [Member]                        
Stock Issued During Period, Shares, New Issues (in shares) 750                      
Series F Preferred Stock [Member] | OID Notes [Member]                        
Stock Issued During Period, Shares, New Issues (in shares) 750 240       750            
Stock Issued During Period, Value, New Issues           $ 0            
Minimum [Member]                        
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 0.85         $ 0.85       $ 0.85   $ 0.85
Maximum [Member]                        
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 57,500         $ 57,500       $ 57,500   $ 57,500
Warrant Liability [Member]                        
Restructuring Costs         $ 753,004