v3.26.1
Note 8 - Capital Stock (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended 10 Months Ended 12 Months Ended 13 Months Ended
Jun. 06, 2025
Mar. 30, 2023
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2026
May 29, 2026
Jun. 05, 2025
Jun. 04, 2025
Apr. 17, 2025
Dec. 31, 2024
Common Stock, Par or Stated Value Per Share (in dollars per share)     $ 0.0001     $ 0.0001     $ 0.0001 $ 0.0001          
Common Stock, Shares Authorized (in shares)     150,000,000     150,000,000     150,000,000 150,000,000          
Common Stock, Shares, Issued (in shares)     3,571,590     3,571,590     3,571,590 3,571,590          
Common Stock, Shares, Outstanding (in shares)     3,571,401     3,571,401     3,571,401 3,571,401          
Preferred Stock, Par or Stated Value Per Share (in dollars per share)     $ 0.0001     $ 0.0001     $ 0.0001 $ 0.0001          
Private Placement [Member] | Series F Preferred Stock [Member]                              
Preferred Stock, Par or Stated Value Per Share (in dollars per share)   $ 0.0001                          
Prefunded Warrants [Member]                              
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.0001                            
Stock Issued During Period, Shares, Warrants Exercised (in shares)     244,191     244,191                  
Class of Warrant or Right, Exercised (in shares)     244,191     244,191       0          
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) $ 3.77                       $ 4.71    
Proceeds From Warrant Exercises, Net $ 6,900,000                            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) 1,989,392   99,470     99,470       99,470          
Proceeds from Issuance of Warrants $ 7,500,000                            
Class of Warrant or Right, Cash Fee 375,000                            
Other Expenses $ 237,000                            
Dividends per Warrant or Right (in dollars per share) $ 3.7699                            
Common Warrants [Member]                              
Stock Issued During Period, Shares, Warrants Exercised (in shares)       394,864     404,864                
Class of Warrant or Right, Exercised (in shares)       394,864   244,191 404,864   1,924,856            
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     $ 3.55     $ 3.55     $ 3.57 $ 3.55         $ 3.41
Class of Warrant or Right, Exercise Price of Warrants or Rights Exercised (in dollars per share)           $ 3.77     $ 3.67            
Common Stock Warrants [Member]                              
Class of Warrant or Right, Exercised (in shares)       394,864     404,864                
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)         $ 3.41                    
Class of Warrant or Right, Cash Fee, Percentage of Proceeds         8.00%                    
Class of Warrant or Right, Exercise Price of Warrants or Rights Exercised (in dollars per share)       $ 3.41     $ 3.41                
Proceeds from Warrant Exercises       $ 1,348,000     $ 1,382,000                
Proceeds From Warrant Exercises, Net       $ 1,241,000   $ 0 $ 1,272,000                
Placement Agent Warrants [Member]                              
Class of Warrant or Right, Cash Fee, Percentage of Proceeds   8.00%                          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)               153,470              
Advisor Warrants [Member]                              
Class of Warrant or Right, Exercised (in shares)               0              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     3.77     $ 3.77   $ 3.77   3.77          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                       100,000      
Class of Warrant or Right, Vesting Percent                       8.33%      
Class of Warrant or Right, Vesting During Period (in shares)           100,000                  
Closing Warrant [Member] | Manako Labs Ltd [Member]                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)                     $ 3.41        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                     100,000        
Class of Warrant or Right, Beneficial Ownership Percentage                     9.99%        
Tranche A Warrants [Member] | Manako Labs Ltd [Member]                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     4.5     $ 4.5       4.5 $ 4.5        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                     100,000        
Tranche B Warrants [Member] | Manako Labs Ltd [Member]                              
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)     $ 5.5     $ 5.5       $ 5.5 $ 5.5        
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                     100,000        
Stock Repurchase Program [Member]                              
Share Repurchase Program, Authorized, Amount                           $ 500,000  
Share Repurchase Program, Remaining Authorized, Amount                           $ 500,000