v3.26.1
Note 6 - Capital Stock (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 10 Months Ended
Jun. 06, 2025
Mar. 30, 2023
May 14, 2026
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 05, 2025
Jun. 04, 2025
Apr. 17, 2025
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)       3,327,399   3,327,399 3,327,399 3,327,399      
Common Stock, Shares, Outstanding (in shares)       3,327,210   3,327,210 3,327,210 3,327,210      
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                  
Common Stock Warrants [Member]                      
Stock Issued During Period, Shares, Warrants Exercised (in shares)         10,000            
Class of Warrant or Right, Exercised (in shares)         10,000            
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, Number of Securities Called by Warrants or Rights (in shares)         10,000            
Class of Warrant or Right, Exercise Price of Warrants or Rights Exercised (in dollars per share)         $ 3.41            
Proceeds from Warrant Exercises         $ 34,000            
Proceeds From Warrant Exercises, Net       $ 0 $ 31,000            
Prefunded Warrants [Member]                      
Common Stock, Par or Stated Value Per Share (in dollars per share) $ 0.0001                    
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 [1]   $ 3.77 [1] $ 3.77 [1]     $ 4.71  
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 Warrant Exercises, Net $ 6,900,000                    
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                    
Prefunded Warrants [Member] | Subsequent Event [Member]                      
Stock Issued During Period, Shares, Warrants Exercised (in shares)     128,939                
Class of Warrant or Right, Exercised (in shares)     128,939                
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   153,470 153,470        
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        
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)           75,000          
Stock Repurchase Program [Member]                      
Share Repurchase Program, Authorized, Amount                     $ 500,000
Share Repurchase Program, Remaining Authorized, Amount                     $ 500,000
[1] The exercise price for the Pre-Funded Warrants was paid upon issuance of the Pre-Funded Warrants. The exercise of the Pre-Funded Warrants will not result in additional proceeds for the Company.