v3.25.2
Note 17 - Related Parties (Details Textual) - USD ($)
1 Months Ended 6 Months Ended
Jun. 02, 2025
Jan. 29, 2025
Jan. 06, 2025
Dec. 31, 2024
Oct. 25, 2024
Sep. 03, 2024
Aug. 28, 2024
May 01, 2024
Jan. 09, 2023
Apr. 30, 2025
Jun. 30, 2025
Jun. 20, 2025
Feb. 28, 2025
Aug. 23, 2024
Aug. 22, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares) 225,000                            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)                     20,502,073        
Class of Warrant or Right, Exercised in Period (in shares)                     3,096,000        
Cardionomix Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                     82.00%   82.00%    
KardioNav, Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                     57.00% 57.00%      
KardioNav, Inc. [Member] | Chelak iECG, Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                       33.00%      
Series H Warrants [Member]                              
Class of Warrant or Right, Exercised in Period (in shares)         1,990,000                    
Series I Warrants [Member]                              
Class of Warrant or Right, Exercised in Period (in shares)         2,325,000                    
Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                     500,000        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)                     $ 0.53        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares) 20,000                            
Share-Based Payment Arrangement, Option [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                     2,127,500        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)                     $ 0.4        
Chief Commercial Officer [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   250,000           25,000              
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)   $ 0.42           $ 5.321              
Chief Commercial Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   25,000                          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage               20.00%              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)               5 years              
Chief Commercial Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   25,000                          
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)   4 years                          
Chief Commercial Officer [Member] | Share-Based Payment Arrangement, Tranche Three [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)   31,250                          
Chief Financial Officer [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     500,000                        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 0.53                        
Chief Financial Officer [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)     500,000                        
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)     $ 0.53                        
Chief Financial Officer [Member] | Share-Based Payment Arrangement, Option [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     36 months                        
Chief Financial Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] | Non-plan Options [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)     3 years                        
Old Catheter [Member] | Mr. Jenkins and Affiliates [Member]                              
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)                     1,325.838        
Old Catheter [Member] | Mr. Jenkins Adult Children [Member]                              
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)                     1,284.344        
Business Combination, Consideration Transferred, Equity Interest, Share Held, Number of Shares (in shares)                     9,239.285        
David Jenkins [Member]                              
Convertible Notes Payable                 $ 25,100,000            
Interest Accrued and Unpaid, Forgiven Amount                 $ 13,900,000            
David Jenkins [Member] | LockeT Royalty [Member]                              
Royalty Percentage                 12.00%            
David Jenkins [Member] | Conversion of Convertible Promissory Notes into Series X Preferred Stock [Member]                              
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)                 7,856.251            
Auston Locke [Member] | LockeT Royalty [Member]                              
Royalty Percentage                 5.00%            
Royalty Guarantees, Commitments, Amount                 $ 1,000,000 $ 1,000,000          
Auston Locke [Member] | LockeT Royalty [Member] | Royalty Payment After U.S. Patent Granted and One Million Paid [Member]                              
Royalty Percentage                   5.00%          
Royalty Guarantees, Commitments, Amount                   $ 10          
Increase in Royalty Percentage                   2.00%          
Non-Executive Chief Operating Officer [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                 14,416            
Non-Executive Chief Operating Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                 14,081            
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)                 $ 5.9            
Non-Executive Chief Operating Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member]                              
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)                 335            
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)                 $ 20.2            
Related Party [Member] | Related Party Notes [Member]                              
Debt Instrument, Interest Rate, Stated Percentage                           12.00% 8.00%
Jenkins Family Charitable Institute [Member]                              
Proceeds from Issuance Initial Public Offering           $ 500,000                  
Stock Issued During Period, Shares, New Issues (in shares)           265,000                  
Jenkins Family Charitable Institute [Member] | Prefunded Warrants [Member]                              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)           235,000                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)           $ 0.0001                  
Class of Warrant or Right, Exercised in Period (in shares)             235,000                
Stock Issued During Period, Shares, Warrant Exercises (in shares)             235,000                
Jenkins Family Charitable Institute [Member] | Series H Warrants [Member]                              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)           500,000                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)           $ 1                  
Jenkins Family Charitable Institute [Member] | Series I Warrants [Member]                              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)           500,000                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)           $ 1                  
Jenkins Family Charitable Institute [Member] | Series J Warrants [Member]                              
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)           500,000                  
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)           $ 1                  
Class of Warrant or Right, Distributed (in shares)       450,000                      
Mr. Jenkins [Member] | Cardionomix Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                       3.00% 5.00%    
Mr. Jenkins and Affiliates [Member] | Cardionomix Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                       7.00% 7.00%    
Certain Third Parties [Member] | Cardionomix Inc. [Member]                              
Subsidiary, Ownership Percentage, Parent                         6.00%