Quarterly report [Sections 13 or 15(d)]

Note 2 - Summary of Significant Accounting Policies (Details Textual)

v3.25.2
Note 2 - Summary of Significant Accounting Policies (Details Textual)
 1 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 12 Months Ended
Jul. 10, 2025
USD ($)
$ / shares
shares
Jul. 08, 2025
shares
Jul. 07, 2025
USD ($)
shares
Jun. 09, 2025
USD ($)
$ / shares
shares
May 30, 2025
$ / shares
shares
Feb. 14, 2025
USD ($)
shares
Feb. 10, 2025
USD ($)
Jan. 31, 2025
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
shares
Jun. 09, 2025
USD ($)
$ / shares
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Jun. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
shares
Jul. 15, 2025
USD ($)
Jun. 15, 2025
USD ($)
Jun. 13, 2025
USD ($)
Dec. 31, 2023
USD ($)
Retained Earnings (Accumulated Deficit)                 $ (277,149,000)     $ (277,149,000)   $ (270,035,000)        
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation                       (3,995,000) $ (6,052,000)          
Cash and Cash Equivalent                 475,000     475,000   $ 1,310,000        
Stock Issued During Period, Shares, New Issues (in shares) | shares               6,563           6,563        
Contract with Customer, Asset, after Allowance for Credit Loss                 166,000     166,000   $ 372,000        
Contract with Customer, Liability                 1,036,000     1,036,000   50,000       $ 399,000
Advertising Expense                 $ 4,000 $ 13,000   $ 22,000 56,000          
Finite-Lived Intangible Asset, Useful Life                 5 years     5 years            
Number of Reportable Segments                 1                  
Share-Based Payment Arrangement, Expense                 $ 476,000 298,000   $ 759,000 630,000          
Payments of Financing Costs                 $ 7,000     139,000            
Debt Financing Costs Expensed As Incurred                   $ 0     $ 0          
Number of Operating Segments                 1                  
Unrecognized Tax Benefits                 $ 0     0   0        
Common Stock Underlying All Outstanding Stock Option, Restricted Stock Units and Warrants [Member]                                    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares                 148,000 54,000                
Common Stock Potentially Issuable in Connection With Conversion of Outstanding Preferred Stock [Member]                                    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares                 246,000 304,000                
Common Stock Potentially Issuable in Connection With The Exercise of Outstanding Additional Investment Rights [Member]                                    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares                 486,000 210,000                
Prepaid Expenses and Other Current Assets [Member]                                    
Deferred Costs, Current                 $ 63,000     $ 63,000   $ 64,000        
2025 Omnibus Equity Incentive Plan [Member]                                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) | shares                     70,900              
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Canceled       $ 408,000             $ 408,000              
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)       2 years                            
Total Compensation Costs, Recognized and Not Yet Recognized       $ 307,000                            
Share-Based Payment Arrangement, Expense       165,000                            
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount       $ 141,000             $ 141,000              
Restricted Stock Units (RSUs) [Member] | 2025 Omnibus Equity Incentive Plan [Member]                                    
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares       75,000             75,000              
Percentage of Reserved Shares       100.00%             100.00%              
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) | shares                     30,796              
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares       $ 5.08             $ 5.08              
Restricted Stock Units (RSUs) [Member] | Super League 2014 Stock Option and Incentive Plan [Member]                                    
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares       3,204             3,204              
Share-Based Payment Arrangement [Member] | Super League 2014 Stock Option and Incentive Plan [Member]                                    
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares       3,708             3,708              
Share-Based Payment Arrangement, Option [Member] | 2025 Omnibus Equity Incentive Plan [Member]                                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares) | shares                     40,104              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price (in dollars per share) | $ / shares       $ 5.08             $ 5.08              
Share-Based Payment Arrangement, Option [Member] | Super League 2014 Stock Option and Incentive Plan [Member]                                    
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | shares       8,433             8,433              
Computer Software, Intangible Asset [Member]                                    
Finite-Lived Intangible Asset, Useful Life                 3 years     3 years            
Minimum [Member]                                    
Finite-Lived Intangible Asset, Useful Life                 3 years     3 years            
Maximum [Member]                                    
Finite-Lived Intangible Asset, Useful Life                 10 years     10 years            
Equity Purchase Agreement [Member]                                    
Shares Issued, Price Per Share | $ / shares                 $ 13.6     $ 13.6            
Equity Offering, Maximum Amount           $ 2,900,000                        
Equity Offering, Price Per Share, Percentage of Closing Price           92.00%                        
Stock Issued During Period, Value, New Issues           $ 159,000                        
Stock Issued During Period, Shares, New Issues (in shares) | shares           7,500     0     17,925            
Proceeds from Issuance of Common Stock                       $ 231,000            
Pre-Funded Warrant [Member]                                    
Class of Warrant or Right, Issued During Period | shares         59,833                          
Shares Issued, Price Per Share | $ / shares         $ 4.79                          
Subsequent Event [Member]                                    
Proceeds from Issuance or Sale of Equity $ 4,000,000                                  
Subsequent Event [Member] | Equity Purchase Agreement [Member]                                    
Equity Offering, Maximum Amount $ 20,000,000                                  
Equity Offering, Price Per Share, Percentage of Closing Price 92.00%                                  
Stock Issued During Period, Value, New Issues $ 600,000                                  
Subsequent Event [Member] | Pre-Funded Warrant [Member]                                    
Class of Warrant or Right, Issued During Period | shares 173,023                                  
Class of Warrant or Right, Grant Date Fair Value | $ / shares $ 0.001                                  
Class of Warrant or Right, Outstanding | shares 600,000                                  
Subsequent Event [Member] | Pre-Funded Warrant [Member] | Minimum [Member]                                    
Ownership Percentage 4.99%                                  
Subsequent Event [Member] | Pre-Funded Warrant [Member] | Maximum [Member]                                    
Ownership Percentage 9.99%                                  
Subsequent Event [Member] | Common Stock Purchase Warrants [Member]                                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares 659,968                                  
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 5.361                                  
Subsequent Event [Member] | Scenario, Plan [Member] | Agile Exchange Agreement [Member]                                    
Shares Issued, Price Per Share | $ / shares $ 5.67                                  
Subsequent Event [Member] | Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares     1,500,000                              
Subsequent Event [Member] | Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member] | Michael Keller Trust Stock Exchange Agreement [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares     1,500,000                              
Subsequent Event [Member] | Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member] | Khakshoor Stock Exchange Agreement [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares   711,361                                
Subsequent Event [Member] | Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member] | Drozdov Stock Exchange Agreement [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares   711,361                                
Subsequent Event [Member] | Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member] | Firepit Stock Exchange Agreement [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares   474,242                                
Subsequent Event [Member] | Scenario, Plan [Member] | Common Stock [Member] | Agile Exchange Agreement [Member]                                    
Stock Issued During Period, Shares, Equity Exchange | shares 44,128                                  
Preferred Stock Exchange Agreement [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount     $ 1,878,082                              
Debt Instrument, Issued, Principal     378,002                              
Debt Instrument, Periodic Payment     $ 63,000                              
Khakshoor Agreement [Member]                                    
Debt Instrument, Face Amount                               $ 18,750 $ 711,361  
Khakshoor Agreement [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount                             $ 18,750      
Drozdov Agreement [Member]                                    
Debt Instrument, Face Amount                               18,750 711,361  
Drozdov Agreement [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount                             18,750      
Firepit Agreement [Member]                                    
Debt Instrument, Face Amount                               $ 12,500 $ 474,242  
Firepit Agreement [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount                             $ 12,500      
Agile II Note [Member]                                    
Debt Instrument, Face Amount             $ 2,500,000                      
Debt Instrument, Periodic Payment             $ 110,937                      
Debt Instrument, Interest Rate, Stated Percentage             42.00%                      
Debt Instrument, Term (Month)             224 days                      
Agile II Note [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount $ 1,331,250                                  
Debt Instrument, Issued, Principal 100,000                                  
Debt Instrument, Periodic Payment 25,000                                  
Purchase Agreement [Member] | Subsequent Event [Member]                                    
Debt Instrument, Face Amount $ 4,494,382                                  
Debt Instrument, Interest Rate, Stated Percentage 8.00%                                  
Debt Instrument, Term (Month) 18 months                                  
Debt Instrument, Discount, Percent 11.00%                                  
Debt Instrument, Convertible, Conversion Price | $ / shares $ 6.815                                  
Debt Instrument, Covenant, Outstanding Amount, Threshold $ 1,500,000                                  
Debt Instrument, Percentage of Subsequent Offerings 25.00%                                  
Debt Instrument, Default, Interest Rate 18.00%                                  
Purchase Agreement [Member] | Subsequent Event [Member] | Minimum [Member]                                    
Ownership Percentage 4.99%                                  
Purchase Agreement [Member] | Subsequent Event [Member] | Maximum [Member]                                    
Ownership Percentage 9.99%