v3.26.1
Note 4 - Debt (Details Textual)
3 Months Ended 6 Months Ended 12 Months Ended 22 Months Ended
May 07, 2026
USD ($)
May 06, 2026
USD ($)
Mar. 06, 2026
USD ($)
$ / shares
shares
Jan. 01, 2026
USD ($)
Feb. 25, 2025
USD ($)
Feb. 24, 2025
USD ($)
$ / shares
Oct. 31, 2024
USD ($)
$ / shares
shares
Aug. 20, 2024
USD ($)
Jun. 15, 2024
Aug. 20, 2023
Jul. 15, 2022
USD ($)
Jun. 30, 2026
USD ($)
shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
$ / shares
shares
Jun. 15, 2025
USD ($)
Aug. 20, 2025
USD ($)
First Closing Buyer Warrants [Member]                                    
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares     1,291,778                 2,051,835   2,051,835        
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares     $ 0.01                              
Cayman Islands Exempt Limited Company [Member] | Conversion of EVTV-1 Promissory Note into Common Stock [Member]                                    
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares                         $ 0.63     $ 1.06    
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares                         529,096     1,416,116    
Cayman Islands Exempt Limited Company [Member] | Conversion of EVTV-3 Promissory Note into Common Stock [Member]                                    
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares                         $ 0.53     $ 1.51    
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares                         94,657     2,134,613    
Cayman Islands Exempt Limited Company [Member] | A&R SEPA [Member]                                    
Equity Issuance, Maximum Amount of Common Stock Issuable             $ 25,000,000                      
Premium Financing Agreement [Member]                                    
Debt Instrument, Term (Month)                 9 months                  
Notes Payable                                 $ 140,400  
Premium Financing Agreement [Member] | AFCO Insurance Premium Finance [Member]                                    
Debt Instrument, Term (Month)                   11 months                
Debt Instrument, Interest Rate, Stated Percentage                   8.24%                
July 2025 Premium Financing Agreement [Member] | AFCO Insurance Premium Finance [Member]                                    
Debt Instrument, Periodic Payment                                 $ 14,576  
Notes Payable                       $ 0   $ 0        
Debt Instrument, Interest Rate, Stated Percentage                                 8.24%  
August 2025 Premium Financing Agreement [Member] | AFCO Insurance Premium Finance [Member]                                    
Debt Instrument, Face Amount                                   $ 114,140
Debt Instrument, Periodic Payment               $ 7,809                    
Notes Payable                       46,457   46,457        
Debt Instrument, Initial Downpayment               $ 39,515                    
January 2026 Premium Financing Agreement [Member] | IPFS Corporation [Member]                                    
Debt Instrument, Face Amount       $ 101,837                            
Debt Instrument, Term (Month)       11 months                            
Debt Instrument, Periodic Payment       $ 7,214                            
Notes Payable                       49,515   49,515        
Debt Instrument, Interest Rate, Stated Percentage       7.90%                            
Debt Instrument, Initial Downpayment       $ 25,435                            
Pre-Paid Advance Under A&R SEPA for Promissory Notes[Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Face Amount             3,000,000                      
Proceeds from Issuance of Debt             2,635,500                      
Pre-Paid Advance Under A&R SEPA, Tranche One [Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Face Amount             2,000,000                      
Long-Term Debt, Gross                               $ 285,000    
Pre-Paid Advance Under A&R SEPA, Tranche Two [Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Face Amount             $ 1,000,000                      
Promissory Notes [Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Interest Rate, Stated Percentage             0.00%                      
Debt Instrument, Interest Rate Upon Default Event Occurrence or Registration Event Uncured             18.00%                      
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares             $ 21.48                      
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger             93.00%                      
Debt Instrument, Convertible, Threshold Consecutive Trading Days             5                      
Debt Instrument, Convertible, Floor Price (in dollars per share) | $ / shares             $ 3.58                      
Stock Issued During Period, Shares, Commitment Fee (in shares) | shares             6,410                      
Additional Promissory Note [Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Face Amount           $ 5,000,000                        
Debt Instrument, Interest Rate, Stated Percentage           5.00%                        
Debt Instrument, Interest Rate Upon Default Event Occurrence or Registration Event Uncured           18.00%                        
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares           $ 10                        
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger           93.00%                        
Debt Instrument, Convertible, Threshold Consecutive Trading Days           5                        
Debt Instrument, Convertible, Floor Price (in dollars per share) | $ / shares           $ 0.713                        
Additional Promissory Note Tranche One [Member] | Cayman Islands Exempt Limited Company [Member]                                    
Debt Instrument, Face Amount         $ 3,000,000                          
Proceeds from Issuance of Debt         $ 2,700,000                          
Long-Term Debt, Gross                               $ 50,000    
Debentures [Member]                                    
Debt Instrument, Face Amount     $ 11,000,000                              
Debt Instrument, Interest Rate, Stated Percentage     5.00%                              
Proceeds from Issuance of Debt     $ 10,535,000                     10,535,000 $ 0      
Debt Instrument, Percentage of Amount to be Purchased     96.00%                              
Debt Instrument, Covenant, Number of Shares Issued (in shares) | shares     10,000,000                              
Debt Instrument, Default Interest Rate     18.00%                              
Debentures [Member] | Investor [Member]                                    
Payments of Debt Issuance Costs     $ 25,000                              
Facility Grounds Equipment Loans [Member]                                    
Debt Instrument, Face Amount                     $ 25,007              
Debt Instrument, Term (Month)                     36 months              
Debt Instrument, Periodic Payment                     $ 521              
Notes Payable                       1,042   1,042        
First Closing Debentures [Member] | Debentures [Member]                                    
Debt Instrument, Face Amount     4,000,000                              
Debt Instrument, Periodic Payment     363,636                              
Proceeds from Issuance of Debt     3,815,000                   $ 3,815,000          
Second Closing Debentures [Member] | Debentures [Member]                                    
Debt Instrument, Face Amount     7,000,000                              
Debt Instrument, Periodic Payment     $ 636,364                              
Proceeds from Issuance of Debt $ 5,850,000 $ 5,850,000                                
Payments of Debt Issuance Costs   870,000                                
Debt Instrument, Unamortized Discount   $ 280,000                                
Unrealized Gain (Loss) on Debt Instrument                       $ (893,630)   $ (1,000,627)