v3.25.1
Stockholders' Equity - Issuances of Common Stock (Details)
 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 29, 2025
USD ($)
shares
Jan. 10, 2025
USD ($)
$ / shares
shares
Apr. 01, 2024
USD ($)
Mar. 26, 2024
USD ($)
$ / shares
shares
Mar. 25, 2024
Dec. 07, 2023
USD ($)
$ / shares
shares
Aug. 11, 2023
USD ($)
$ / shares
shares
Dec. 09, 2022
USD ($)
shares
Dec. 06, 2022
shares
Nov. 01, 2021
$ / shares
shares
Nov. 25, 2020
USD ($)
shares
Mar. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Sep. 30, 2024
shares
Sep. 30, 2023
USD ($)
shares
Mar. 31, 2025
USD ($)
$ / shares
shares
Mar. 31, 2024
USD ($)
Jun. 30, 2024
USD ($)
$ / shares
shares
Feb. 19, 2025
$ / shares
Jul. 03, 2024
USD ($)
$ / shares
Aug. 04, 2023
$ / shares
shares
Aug. 03, 2023
$ / shares
Class of Stock [Line Items]                                            
Common stock, par value | $ / shares                       $ 0.001       $ 0.001   $ 0.001        
Preferred stock, shares issued                       0       0   0        
Proceeds from the exercise of stock options | $                               $ 130,000 $ 0          
Restricted Stock Units                                            
Class of Stock [Line Items]                                            
Shares vested                       11,575 11,575 12,219                
Employee Stock Option                                            
Class of Stock [Line Items]                                            
Shares exercised                       54,900 18,200                  
Weighted-average exercise price | $ / shares                         $ 1.72                  
Proceeds from the exercise of stock options | $                       $ 99,246 $ 18,060,000                  
Subscription receivable | $                         $ 13,244,000                  
Maximum | Employee Stock Option                                            
Class of Stock [Line Items]                                            
Weighted-average exercise price | $ / shares                       $ 2.45                    
Minimum | Employee Stock Option                                            
Class of Stock [Line Items]                                            
Weighted-average exercise price | $ / shares                       $ 1.72                    
Series 2022 Preferred Stock                                            
Class of Stock [Line Items]                                            
Preferred stock, shares issued                       0       0   0        
Transfer of Listing (NASDAQ)                                            
Class of Stock [Line Items]                                            
Common stock, par value | $ / shares                                     $ 0.001      
Cantor Fitzgerald Underwriting | At-The-Market Offerings | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, shares issued                     460,133       170,989 0            
Gross proceeds from sale of equity | $                     $ 8,100,000                      
Net proceeds from sale of equity | $                             $ 1,700,000              
Cantor Fitzgerald Underwriting | At-The-Market Offerings | Common Stock | Maximum                                            
Class of Stock [Line Items]                                            
Aggregate offering price | $                     $ 100,000,000                      
Wainwright Underwriting | At-The-Market Offerings                                            
Class of Stock [Line Items]                                            
Warrants, proceeds from issuance | $               $ 2,864,000                            
Wainwright Underwriting | At-The-Market Offerings | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, shares issued                 76,538                          
Wainwright Underwriting | At-The-Market Offerings | Common Stock | Pre-Funded Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued                 91,730                          
Wainwright Underwriting | At-The-Market Offerings | Common Stock | Series A warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued                 168,269                          
Wainwright Underwriting | At-The-Market Offerings | Common Stock | Series B warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued                 168,269                          
Wainwright Underwriting | H.C. Wainwright & Co.                                            
Class of Stock [Line Items]                                            
Agent fee percentage               7.00%                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock                                            
Class of Stock [Line Items]                                            
Underwriters purchase option period               30 days                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock | Maximum                                            
Class of Stock [Line Items]                                            
Warrants, shares issued               50,480                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock | Minimum                                            
Class of Stock [Line Items]                                            
Warrants, shares issued               25,240                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock | Representative Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued               10,094                            
Additional shares for purchase, percentage of aggregate shares in offerings               6.00%                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock | Series A warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued               25,240                            
Wainwright Underwriting | H.C. Wainwright & Co. | Underwriters Option | Common Stock | Series B warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued               25,240                            
Lincoln Park Stock Purchase Agreement | At-The-Market Offerings | Common Stock                                            
Class of Stock [Line Items]                                            
Aggregate offering price | $             $ 10,000,000                              
Common stock, shares issued                                   202,595        
Gross proceeds from sale of equity | $             $ 5,000,000                              
Net proceeds from sale of equity | $                                   $ 1,300,000        
Common stock, shares available for future issuance                       0       0            
Term of stock purchase agreement             24 months                              
Initial commitment shares issued             10,573                              
Additional commitment shares issued             10,573                              
Lincoln Park Stock Purchase Agreement | At-The-Market Offerings | Common Stock | Maximum                                            
Class of Stock [Line Items]                                            
Aggregate offering price | $             $ 10,000,000                              
Shares available for purchase when stock price closes between $3 and $20 per share             5,000                              
Shares available for purchase when stock price closes between $20 and $40 per share             7,500                              
Shares available for purchase when stock price closes at or above $40 per share             10,000                              
Fair value of common stock purchased in single transaction | $             $ 500,000                              
Lincoln Park Stock Purchase Agreement | At-The-Market Offerings | Common Stock | Minimum                                            
Class of Stock [Line Items]                                            
Stock price permitting the sale of up to 5,000 shares | $ / shares             $ 3                              
Stock price permitting the sale of up to 7,500 shares | $ / shares             20                              
Stock price permitting the sale of up to 10,000 shares | $ / shares             40                              
Stock price permitting accelerated purchase clause | $ / shares             $ 4                              
Number of "additional accelerated purchases" that may be directed             1                              
Securities Purchase Agreement | Private placement                                            
Class of Stock [Line Items]                                            
Net proceeds from sale of equity | $           $ 4,000,000                                
Accrued stock issuance costs | $                       $ 369,000       $ 369,000            
Securities Purchase Agreement | Alliance Global Partners | Private placement                                            
Class of Stock [Line Items]                                            
Combined price per share of common stock and warrants | $ / shares           $ 2                                
Reimbursement for legal expenses | $           $ 75,000                                
Non-accountable expense allowance | $           $ 15,000                                
Agent fee percentage           5.50%                                
Securities Purchase Agreement | Alliance Global Partners | Private placement | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, shares issued           600,000                                
Securities Purchase Agreement | Alliance Global Partners | Private placement | Common Stock | Pre-Funded Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued           1,650,000                                
Warrants, shares of common stock issuable upon conversion           1,650,000                                
Securities Purchase Agreement | Alliance Global Partners | Private placement | Common Stock | Series C Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued           2,250,000                                
Warrants, shares of common stock issuable upon conversion           2,250,000                                
Securities Purchase Agreement | Alliance Global Partners | Private placement | Common Stock | Series D Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued           2,250,000                                
Warrants, shares of common stock issuable upon conversion           2,250,000                                
Securities Purchase Agreement and Warrants | Private placement                                            
Class of Stock [Line Items]                                            
Gross proceeds from sale of equity | $       $ 15,100,000                                    
Reimbursement for legal expenses | $       $ 50,000                                    
Agent fee percentage       6.00%                                    
Reduced placement agent fee percentage       4.00%                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, shares issued       2,701,315                                    
Net proceeds from sale of equity | $     $ 14,100,000                                      
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Pre-Funded Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued       2,585,963                                    
Warrants, exercise price | $ / shares       $ 0.0001                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Series E Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued       5,287,278                                    
Warrants, exercise price | $ / shares       $ 2.64                                    
Warrants, exercisable term       5 years                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Common Shares and Series E Warrants                                            
Class of Stock [Line Items]                                            
Combined price per share of common stock and warrants | $ / shares       $ 2.85                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Pre-funded and Series E Warrants                                            
Class of Stock [Line Items]                                            
Combined price per share of common stock and warrants | $ / shares       $ 2.849                                    
Term of 2024 Securities Purchase Agreement       1 year                                    
Purchase agreement exclusivity period       60 days                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Pre-funded and Series E Warrants | Maximum                                            
Class of Stock [Line Items]                                            
Warrant exercise, common stock ownership limitation       4.99%                                    
Warrant exercise, common stock ownership limitation (at the election of the holder)       9.99% 9.99%                                  
Number of days to file a registration statement       75 days                                    
Number of days to file a registration statement (in the event of a "full review" by SEC)       90 days                                    
Suspension period       15 days                                    
Securities Purchase Agreement and Warrants | Private placement | Common Stock | Pre-funded and Series E Warrants | Minimum                                            
Class of Stock [Line Items]                                            
Warrant holder's election, period of written notice       61 days                                    
Number of days to file a registration statement       60 days                                    
At Market Issuance Sales Agreement | Placement Agents | At-The-Market Offerings | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, par value | $ / shares                                       $ 0.001    
Aggregate offering price | $                                       $ 7,350,000    
Common stock, shares issued                       32,167                    
Net proceeds from sale of equity | $                       $ 102,000                    
2025 Purchase Agreement | Investors | Private placement | Common Stock                                            
Class of Stock [Line Items]                                            
Common stock, shares issued   240,807                                        
Share price on new issues | $ / shares   $ 2.72                                        
Aggregate gross proceeds | $   $ 655,000                                        
AstralBio Exclusive License Agreement                                            
Class of Stock [Line Items]                                            
Common stock, shares issued 246,087                                          
Payment of upfront licensing fee | $ $ 750,000                                          
Warrants | H.C. Wainwright & Co. | Common Stock | Pre-Funded Warrants                                            
Class of Stock [Line Items]                                            
Warrants, exercise price | $ / shares                                           $ 0.001
Warrants | H.C. Wainwright & Co. | Common Stock | Representative Warrants                                            
Class of Stock [Line Items]                                            
Warrants, exercise price | $ / shares                                           $ 26
Warrants, exercisable term                                           5 years
Warrants | H.C. Wainwright & Co. | Common Stock | Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares of common stock issuable upon conversion                       0       0            
Warrants, exercise price | $ / shares                                         $ 10 $ 20.8
Warrants | H.C. Wainwright & Co. | Common Stock | Series A warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares of common stock issuable upon conversion                                         173,795  
Warrants, exercise price | $ / shares                                           $ 20.8
Warrants, exercisable term                                           5 years
Warrants | H.C. Wainwright & Co. | Common Stock | Series B warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares of common stock issuable upon conversion                                         102,900  
Warrants, exercise price | $ / shares                                           $ 20.8
Warrants, exercisable term                                           2 years
Warrants | Bryan Capital | Common Stock | Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued                   2,579                        
Warrants, exercise price | $ / shares                   $ 665                        
Warrants | Alliance Global Partners | Private placement | Common Stock | Pre-Funded Warrants                                            
Class of Stock [Line Items]                                            
Warrants, exercise price | $ / shares           $ 0.0001                                
Warrants | Alliance Global Partners | Private placement | Common Stock | Warrants                                            
Class of Stock [Line Items]                                            
Warrants, exercise price | $ / shares           $ 1.9999                                
Warrants | Alliance Global Partners | Private placement | Common Stock | Series C Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued           2,250,000                                
Warrants, exercise price | $ / shares           $ 2                                
Warrants, exercisable term           2 years                                
Warrants | Alliance Global Partners | Private placement | Common Stock | Series D Warrants                                            
Class of Stock [Line Items]                                            
Warrants, shares issued           2,250,000                                
Warrants, exercise price | $ / shares           $ 2.00                                
Warrants, exercisable term           5 years