v3.26.1
Note 14 - Shareholders' Equity (Details Textual)
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 05, 2026
$ / shares
shares
Jul. 30, 2026
$ / shares
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Mar. 27, 2026
USD ($)
$ / shares
shares
Sep. 05, 2025
$ / shares
Apr. 24, 2025
shares
Mar. 21, 2025
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
shares
Jun. 30, 2026
USD ($)
$ / shares
shares
Jun. 30, 2025
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Aug. 14, 2026
shares
Jul. 10, 2026
shares
Apr. 25, 2025
shares
Dec. 31, 2024
shares
Common Stock, Shares Authorized (in shares)     2,000,000,000           2,000,000,000     2,000,000,000   2,000,000,000     600,000,000 300,000,000
Common Stock, Shares, Issued (in shares)     724,658           724,658     724,658   724,658        
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001     $ 0.0001     $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Shares Authorized (in shares)     1,000,000           1,000,000     1,000,000   1,000,000        
Put Option Agreement, Covenant, Shares Repurchased (in shares)     1,150           1,150     1,150            
Temporary Equity, Including Noncontrolling Interest | $     $ 451,000           $ 451,000     $ 451,000   $ 0        
Class of Warrant or Right, Outstanding (in shares)     4,135,911           4,135,911   4,135,911 4,135,911 4,135,911 4,135,911       2,936,234
Class of Warrant or Right, Issued During Period (in shares)                       0 1,199,677          
Class of Warrant or Right, Issued During Period, Weighted Average Exercise Price (in dollars per share) | $ / shares                       $ 0 $ 0.88          
Common Stock, Shares, Outstanding (in shares)     724,658           724,658     724,658   724,658        
Twenty Twenty Three Equity Incentive Plan [Member]                                    
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)     11,200         11,200 11,200     11,200   11,200        
Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period (in shares)                       0   0        
Share-Based Compensation Arrangement by Share-Based Payment Award, Voting Rights, Percentage               91.00%                    
Share Based Compensation Arrangement By Share Based Payment Award, Number of Shares Available for Grant, Percentage of Shares Outstanding               15.00%                    
Warrant [Member]                                    
Class of Warrant or Right, Outstanding (in shares)     4,135,911           4,135,911     4,135,911            
Class of Warrant or Right, Issued During Period (in shares)                         1,199,295          
Class of Warrant or Right, Issued During Period, Weighted Average Exercise Price (in dollars per share) | $ / shares                         $ 0.85          
Class of Warrant or Right, Issued During Period, Weighted Average Remaining Contractual Term (Year)                         5 years          
Class of Warrant or Right, Issued (in shares)                               4,135,911    
Additional Warrants to an Accredited Investor [Member]                                    
Class of Warrant or Right, Issued During Period (in shares)                         382          
Class of Warrant or Right, Issued During Period, Weighted Average Exercise Price (in dollars per share) | $ / shares                         $ 81.18          
Class of Warrant or Right, Issued During Period, Weighted Average Remaining Contractual Term (Year)                         5 years          
Subsequent Event [Member]                                    
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares $ 0.0001                                  
Series A Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)             50,000                      
Preferred Stock, Shares Authorized (in shares)     60,000           60,000     60,000   60,000        
Preferred Stock, Shares Issued (in shares)     60,000           60,000     60,000   60,000        
Preferred Stock, Votes Per Share     10,000           10,000     10,000            
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Shares Outstanding (in shares)     60,000           60,000     60,000   60,000        
Series B Preferred Stock [Member]                                    
Preferred Stock, Shares Authorized (in shares)     21,150           21,150     21,150   21,150        
Preferred Stock, Shares Issued (in shares)     21,150           21,150     21,150   21,150        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Stated Value (in dollars per share) | $ / shares                       1,000   1,000        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares     $ 0.1           $ 0.1     $ 0.1   $ 1        
Beneficial Ownership, Maximum     19.99%           19.99%     19.99%            
Preferred Stock, Shares Outstanding (in shares)     21,150           21,150     21,150   21,150        
Series B Preferred Stock [Member] | Hoover [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                           21,150        
Series C Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                       2,625            
Preferred Stock, Shares Authorized (in shares)     12,000           12,000     12,000   12,000        
Preferred Stock, Shares Issued (in shares)     6,015           6,015     6,015   3,150        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Stated Value (in dollars per share) | $ / shares                       1,000            
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares     $ 0.1           $ 0.1     $ 0.1            
Beneficial Ownership, Maximum     19.99%           19.99%     19.99%            
Preferred Stock, Shares Outstanding (in shares)     6,015           6,015     6,015   3,150        
Series C Preferred Stock [Member] | Accredited Debt Holder [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                       2,865   3,150        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares     $ 0.1           $ 0.1     $ 0.1            
Series D Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                       9,733            
Preferred Stock, Shares Authorized (in shares)     20,000           20,000     20,000   20,000        
Preferred Stock, Shares Issued (in shares)     9,733           9,733     9,733   0        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Shares Outstanding (in shares)     9,733           9,733     9,733   0        
Series E Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                       684            
Preferred Stock, Shares Authorized (in shares)     20,000           20,000     20,000   20,000        
Preferred Stock, Shares Issued (in shares)     684           684     684   0        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Shares Outstanding (in shares)     684           684     684   0        
Series F Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)     750                              
Preferred Stock, Shares Authorized (in shares)     15,750           15,750     15,750   15,750        
Preferred Stock, Shares Issued (in shares)     750           750     750   0        
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001           $ 0.0001     $ 0.0001   $ 0.0001        
Preferred Stock, Stated Value (in dollars per share) | $ / shares                       $ 1,000            
Beneficial Ownership, Maximum     9.99%           9.99%     9.99%            
Preferred Stock, Convertible, Shares Issuable (in shares) 150,300,000                                  
Preferred Stock, Shares Outstanding (in shares)     750           750     750   0        
Series F Preferred Stock [Member] | Subsequent Event [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares) 14,280                                  
Preferred Stock, Shares Authorized (in shares)   15,750                         15,750      
Preferred Stock, Shares Issued (in shares)   15,030                         15,030      
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares   $ 0.0001                                
Preferred Stock, Stated Value (in dollars per share) | $ / shares   $ 1,000                                
Beneficial Ownership, Maximum   9.99%                                
Series D Convertible Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)       7,583 2,150                          
Preferred Stock, Shares Authorized (in shares)     20,000   20,000       20,000     20,000            
Preferred Stock, Shares Issued (in shares)     9,733           9,733     9,733            
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001   $ 0.0001       $ 0.0001     $ 0.0001            
Preferred Stock, Stated Value (in dollars per share) | $ / shares                       1,000            
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares     $ 0.1           $ 0.1     $ 0.1            
Beneficial Ownership, Maximum     9.99%           9.99%     9.99%            
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, Equity Raise | $         $ 8,000,000                          
Put Option Agreement, Covenant, Shares Repurchased (in shares)         1,150                          
Put Option Agreement, Covenant, Price of Repurchased Shares (in dollars per share) | $ / shares         $ 1,000                          
Temporary Equity, Shares Issued (in shares)       1,150           1,150                
Temporary Equity, Including Noncontrolling Interest | $       $ 451,000           $ 451,000                
Series E Convertible Preferred Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)       684                            
Preferred Stock, Shares Authorized (in shares)       20,000           20,000                
Preferred Stock, Shares Issued (in shares)       684           684                
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares       $ 0.0001           $ 0.0001                
Preferred Stock, Stated Value (in dollars per share) | $ / shares       1,000                            
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares       $ 0.1           $ 0.1                
Beneficial Ownership, Maximum       4.99%           4.99%                
Preferred Stock, Convertible, Shares Issuable (in shares) 6,840,000                                  
Common Stock [Member]                                    
Stock Issued During Period, Shares, New Issues (in shares)                 0   0 0 0          
Reverse Stock Split [Member]                                    
Stockholders' Equity Note, Stock Split, Conversion Ratio           200