Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Commitments and Contingencies (Details Textual)

v3.24.2.u1
Note 7 - Commitments and Contingencies (Details Textual)
1 Months Ended 6 Months Ended 12 Months Ended
Mar. 19, 2024
USD ($)
$ / shares
shares
Mar. 12, 2024
shares
Jun. 30, 2024
USD ($)
shares
May 31, 2024
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Dec. 31, 2023
shares
Stock Issued During Period, Shares, New Issues (in shares) | shares         33,968  
Certain Claims Arising From an Interpretation of Certain Rights of SPA [Member]            
Stock Issued During Period, Shares, New Issues (in shares) | shares 500,000 500,000       760,000
Shares Issued, Price Per Share (in dollars per share) | $ / shares $ 1.85          
Stock Issued During Period, Value, New Issues | $ $ 924,000          
Litigation Settlement, Fee Expense | $         $ 164,000  
Series AA Preferred Additional Investment Rights [Member]            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) | $     $ 294,000      
Class of Warrant or Right, Exchanged During Period (in shares) | shares     3,215,232 642,962 3,215,232  
Pioneer Capital Anstalt [Member] | Restricted Stock [Member]            
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period | shares       275,000    
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Granted, Aggregate Intrinsic Value | $       $ 346,000    
Pioneer Capital Anstalt [Member] | Series AA Preferred Additional Investment Rights [Member]            
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) | $         $ 213,000  
Class of Warrant or Right, Exchanged During Period (in shares) | shares     1,863,049 372,610 1,863,049  
Pioneer Capital Anstalt [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Share Price [Member]            
Warrants and Rights Outstanding, Measurement Input     0.86   0.86  
Pioneer Capital Anstalt [Member] | Minimum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Conversion Price [Member]            
Warrants and Rights Outstanding, Measurement Input     1.886   1.886  
Pioneer Capital Anstalt [Member] | Minimum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Risk Free Interest Rate [Member]            
Warrants and Rights Outstanding, Measurement Input     0.0513   0.0513  
Pioneer Capital Anstalt [Member] | Minimum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Expected Term [Member]            
Warrants and Rights Outstanding, Measurement Input     0.52   0.52  
Pioneer Capital Anstalt [Member] | Minimum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Price Volatility [Member]            
Warrants and Rights Outstanding, Measurement Input     0.80   0.80  
Pioneer Capital Anstalt [Member] | Maximum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Conversion Price [Member]            
Warrants and Rights Outstanding, Measurement Input     13.04   13.04  
Pioneer Capital Anstalt [Member] | Maximum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Risk Free Interest Rate [Member]            
Warrants and Rights Outstanding, Measurement Input     0.0536   0.0536  
Pioneer Capital Anstalt [Member] | Maximum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Expected Term [Member]            
Warrants and Rights Outstanding, Measurement Input     1.02   1.02  
Pioneer Capital Anstalt [Member] | Maximum [Member] | Series AA Preferred Additional Investment Rights [Member] | Measurement Input, Price Volatility [Member]            
Warrants and Rights Outstanding, Measurement Input     0.93   0.93  
Pioneer Capital Anstalt [Member] | Series AA Preferred Additional Investment Rights [Member]            
Preferred Stock, Convertible, Conversion Price Floor | $ / shares       $ 1.886    
Pioneer Capital Anstalt [Member] | Series AA Preferred Additional Investment Rights [Member] | Minimum [Member]            
Preferred Stock, Convertible, Conversion Price | $ / shares       9.43    
Pioneer Capital Anstalt [Member] | Series AA Preferred Additional Investment Rights [Member] | Maximum [Member]            
Preferred Stock, Convertible, Conversion Price | $ / shares       $ 13.04