Quarterly report [Sections 13 or 15(d)]

Equity (Narrative) (Details)

v3.25.3
Equity (Narrative) (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 26, 2025
Apr. 07, 2025
Feb. 27, 2025
Sep. 09, 2024
Feb. 05, 2024
Nov. 07, 2025
Nov. 04, 2025
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Mar. 31, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Aug. 25, 2025
Jun. 30, 2025
Apr. 06, 2025
Feb. 26, 2025
Oct. 21, 2024
Feb. 29, 2024
Class of Stock [Line Items]                                          
Agreed upon purchase price floor               $ 21,000.00       $ 21,000.00   $ 0.14             $ 21,000.00
Future anti-dilution protection                       50.00%                  
Deemed dividend on modification of PIPE Warrants               $ 875,737   $ 875,737 $ 10,600,000   $ 11,447,251                
Deemed contribution on exchange of equity instruments                   $ 4,075,681     4,075,681                
Common stock, par value               $ 0.05       $ 0.05   $ 0.05              
Aggregate offering amount [1]               $ 170,331       $ 170,331   $ 467              
Contingent forward contract                                   $ 4,399,054      
Gain (Loss) from change in fair value of contingent forward contract               $ 789,588       899,080                  
Payments related to equity issuance costs                       2,128,038 $ 237,536                
Allocated to contingent forward contract and expensed                       1,136,532                  
Amount allocated to shares of common stock and Pre-Funded Warrants                       $ 991,506                  
Common Stock [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold         18                   2,702,703            
Series A Preferred Stock [Member]                                          
Class of Stock [Line Items]                                          
Deemed dividend on modification of PIPE Warrants                     $ 751,125                    
Series B Preferred Stock [Member]                                          
Class of Stock [Line Items]                                          
Preferred stock, par value               $ 1.00       $ 1.00   $ 1.00              
Preferred stock, value                                    
Preferred stock, shares issued               0       0   0              
Preferred stock, shares outstanding               0       0   0              
Series D Preferred Stock [Member]                                          
Class of Stock [Line Items]                                          
Preferred stock, par value               $ 1.00       $ 1.00   $ 1.00              
Preferred stock, value                                    
Preferred stock, shares issued               1       1   0         1    
Preferred stock, shares outstanding               1       1   0              
Series C Preferred Stock [Member]                                          
Class of Stock [Line Items]                                          
Number of awards authorized       35,000                                  
Preferred stock, par value       $ 1,000.00       $ 1.00       $ 1.00   $ 1.00              
Conversion price       $ 4,500.00                                  
Preferred stock, value                                    
Preferred stock, shares issued               0       0   0              
Exchange of Series A Preferred Stock and PIPE Warrants to Series C Preferred Stock, net of issuance costs, shares       28,041                   28,041              
Conversion of Series C Preferred Stock to Common Stock, shares                           6,229              
Preferred stock, shares outstanding               0       0   0              
Series C Preferred Stock [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Conversion price       $ 22.50                                  
Conversion of Series C Preferred Stock to Common Stock, shares                           1,246,262              
Series A Warrants [Member]                                          
Class of Stock [Line Items]                                          
Aggregate payment of warrants $ 267,391                                        
Fair value of warrants 761,851                                        
(Gain) Loss from change in fair value of warrants $ 494,460                                        
Series B Warrants [Member]                                          
Class of Stock [Line Items]                                          
Warrants issued                                 3,260,870        
Fair value of warrants                       $ 8,637,203                  
(Gain) Loss from change in fair value of warrants                       $ 8,025,504                  
Series B Warrants [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Warrants issued                                 652,173,983        
Purchase Shares [Member]                                          
Class of Stock [Line Items]                                          
Gross proceed from sale of stock         $ 1,000,000.0                                
Purchase Shares [Member] | Common Stock [Member]                                          
Class of Stock [Line Items]                                          
Common stock, par value         $ 55,500.00                   $ 0.37            
At the Market (“ATM”) Offering [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold               0                          
Gross proceed from sale of stock                 $ 362,269                        
Aggregate offering amount                                       $ 10,000,000  
April 2025 Reverse Stock Split [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold                 762                        
Number of fractional shares                       0                  
April 2025 Reverse Stock Split [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold                 152,250                        
April 2025 Reverse Stock Split [Member] | At First Closing [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold     1,965,000                                    
Needham Sales Agreement [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold               0                          
Aggregate offering amount                               $ 30,000,000          
Needham Sales Agreement [Member] | Subsequent Event [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold           0 0                            
February 2025 Offering [Member]                                          
Class of Stock [Line Items]                                          
Agreed upon purchase price floor                                         $ 0.14
Debt instrument cash fee                       7.50%                  
Offering purchase price     $ 230.00                                    
Warrant exercise period     5 years                                    
Gross proceed from sale of stock   $ 20,000,000.0                                      
Aggregate offering amount     $ 15,000,000                                    
Proceeds from the issuance of contingent forward contract                       $ 5,515,525                  
February 2025 Offering [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Offering purchase price     $ 1.15                                    
February 2025 Offering [Member] | Series A Warrants [Member]                                          
Class of Stock [Line Items]                                          
Warrant exercise price     $ 345.00                                    
Warrants issued to purchase common stock   86,957 86,957                                    
February 2025 Offering [Member] | Series A Warrants [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Warrant exercise price     $ 1.725                                    
Warrants issued to purchase common stock   17,391,306 17,391,306                                    
February 2025 Offering [Member] | Series B Warrants [Member]                                          
Class of Stock [Line Items]                                          
Warrant exercise price     $ 575.00                                    
Warrants issued to purchase common stock   86,957 86,957                                    
February 2025 Offering [Member] | Series B Warrants [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Warrant exercise price     $ 2.875                                    
Warrants issued to purchase common stock   17,391,306 17,391,306                                    
February 2025 Offering [Member] | At First Closing [Member]                                          
Class of Stock [Line Items]                                          
Number of shares sold     9,825                                    
Gross proceed from sale of stock   $ 15,000,000.0                                      
February 2025 Offering [Member] | At Second Closing [Member]                                          
Class of Stock [Line Items]                                          
Gross proceed from sale of stock   $ 5,000,000.0                                      
Aggregate offering amount     $ 5,000,000                                    
Pre Funded Warrants [Member] | February 2025 Offering [Member]                                          
Class of Stock [Line Items]                                          
Offering purchase price     $ 229.80                                    
Warrants issued to purchase common stock   21,720 55,392           55,392                        
Pre Funded Warrants [Member] | February 2025 Offering [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Offering purchase price     $ 1.1490                                    
Warrants issued to purchase common stock   4,347,826 11,078,480           11,078,480                        
Pre Funded Warrants [Member] | February 2025 Offering [Member] | At Second Closing [Member]                                          
Class of Stock [Line Items]                                          
Warrants issued to purchase common stock     21,739                                    
Pre Funded Warrants [Member] | February 2025 Offering [Member] | At Second Closing [Member] | Prior To Reverse Stock Splits [Member]                                          
Class of Stock [Line Items]                                          
Warrants issued to purchase common stock     4,347,826                                    
[1] Prior period results have been adjusted to reflect the reverse stock split of the common stock at a ratio of 1-for-200 that became effective April 21, 2025, the reverse stock split of the common stock at a ratio of 1-for-50 that became effective October 17, 2024 and the reverse stock split of the common stock at a ratio of 1-for-15 that became effective June 12, 2024. See Note 1, "Nature of Operations," for further details.