Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation - Narrative (Details)

v3.25.2
Stock-Based Compensation - Narrative (Details)
 3 Months Ended 6 Months Ended
May 20, 2025
USD ($)
$ / shares
shares
Jan. 02, 2025
USD ($)
$ / shares
shares
Sep. 30, 2024
$ / shares
shares
Sep. 13, 2021
shares
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2025
USD ($)
$ / shares
shares
Jun. 30, 2024
shares
Dec. 31, 2024
shares
Dec. 20, 2024
Mar. 15, 2024
Mar. 14, 2024
Jan. 24, 2023
Jan. 23, 2023
Jan. 30, 2018
Restricted stock awards with service-based vesting conditions                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 7,100,000 $ 7,100,000                
Weighted-average period           2 years 5 months 12 days                
Number of restricted shares granted           7,367,625                
Shares unvested         7,404,551 7,404,551   669,344            
Fair value per share | $ / shares           $ 0.87                
Restricted stock awards with performance-based vesting conditions                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 1,700,000 $ 1,700,000                
Weighted-average period           2 years                
Term for achieving threshold revenue           5 years                
Number of restricted shares granted           1,955,000                
Shares unvested         1,955,000 1,955,000                
Fair value per share | $ / shares           $ 1.04                
LTSI                            
Stock-Based Compensation                            
Maximum shares authorized to issue, percentage                 15.00% 15.00% 8.00%     15.00%
Percentage of maximum shares issued in a year                       15 8 8
Number of shares available for grant         2,890,815 2,890,815                
LTSI | Restricted stock                            
Stock-Based Compensation                            
Number of stock released         57,089 57,089                
Aggregate intrinsic value | $         $ 47,081 $ 47,081                
LTSI | Restricted stock awards with performance-based vesting conditions                            
Stock-Based Compensation                            
Threshold revenues to be achieved for vesting | $           $ 40,000,000                
September 2021 Inducement Grant | Restricted stock                            
Stock-Based Compensation                            
Number of restricted shares granted       21                    
Shares unvested         16 16                
September 2024 Inducement Warrants | Restricted stock                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 0 $ 0                
Number of restricted shares granted     70,000                      
Fair value per share | $ / shares     $ 1.77                      
2022 | Restricted stock units                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 46,000 $ 46,000                
Weighted-average period           11 months 19 days                
Number of stock released           2 3              
Shares unvested         12 12   14            
Bradley Inducement Grant                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 1,958,000 $ 1,958,000                
Weighted-average period           2 years 1 month 24 days                
Bradley Inducement Grant | Restricted stock units                            
Stock-Based Compensation                            
Number of restricted shares granted   1,200,000                        
Fair value per share | $ / shares   $ 2.04                        
Bradley Inducement Grant | Restricted stock awards with service-based vesting conditions                            
Stock-Based Compensation                            
Number of restricted shares granted   600,000                        
Vesting period for each installment   3 months                        
Vesting term   36 months                        
Bradley Inducement Grant | Restricted stock awards with performance-based vesting conditions                            
Stock-Based Compensation                            
Threshold revenues to be achieved for vesting | $   $ 40,000,000                        
Term for achieving threshold revenue   5 years                        
Number of restricted shares granted   600,000                        
LoGuirato Inducement Grant                            
Stock-Based Compensation                            
Unamortized compensation costs | $         $ 459,000 $ 459,000                
Weighted-average period           2 years 3 months                
LoGuirato Inducement Grant | Restricted stock units                            
Stock-Based Compensation                            
Number of restricted shares granted 500,000                          
Fair value per share | $ / shares $ 0.97                          
LoGuirato Inducement Grant | Restricted stock awards with service-based vesting conditions                            
Stock-Based Compensation                            
Number of restricted shares granted 250,000                          
Vesting period for each installment 3 months                          
Vesting term 36 months                          
LoGuirato Inducement Grant | Restricted stock awards with performance-based vesting conditions                            
Stock-Based Compensation                            
Threshold revenues to be achieved for vesting | $ $ 25,000,000                          
Term for achieving threshold revenue 5 years                          
Number of restricted shares granted 250,000