XML 65 R50.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2
Stock-Based Compensation - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 12 Months Ended 15 Months Ended
Feb. 28, 2023
Sep. 16, 2020
May 31, 2023
Feb. 28, 2023
Feb. 28, 2022
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Mar. 31, 2024
Jan. 01, 2024
Jan. 01, 2023
Dec. 31, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Percentage of common stock price purchased through payroll deductions         85.00%              
Percentage of payroll deductions of employee's compensation during offering period         15.00%              
Maximum number of shares employees may purchase during offering period         1,800              
Stock-based compensation expense           $ 3,198,000 $ 1,675,000          
Employee Stock Purchase Plan (ESPP)                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Common stock reserved for future issuance   724,000               724,000 632,075  
Share-based payment award, expiration period   10 years                    
Share-based payment award, expiration date   Jan. 01, 2030                    
Percentage of automatic increase every year in common stock shares reserved for future issuance   1.00%                    
Share-based payment award, terms of award issuance           the number of shares of common stock that are automatically added on January 1st of each year for a period of up to ten years, commencing on the first January 1 following the IPO and ending on (and including) January 1, 2030, in an amount equal to the lesser of (i) one percent (1.0%) of the total number of shares of capital stock outstanding on December 31st of the preceding calendar year, and (ii) 724,000 shares of common stock.            
Number of shares of common stock issued under ESPP   0       188,193            
Employee Stock Purchase Plan (ESPP) | Maximum                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Number of shares authorized for issuance   362,000                    
Restricted Stock Units                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition           3 years 2 months 12 days            
Share-based payment award, RSU/RSA granted           4,300,261            
Outstsanding performance and market-based RSU's and RSAs           4,657,971   375,044 4,657,971      
Share-based payment award, unvested RSU/RSA granted, compensation cost not yet recognized           $ 8,500,000     $ 8,500,000      
Share-based payment award, RSU/RSA granted, weighted average grant date fair value           $ 1.77            
Performance and market-based restricted stock units of other option vested during period           17,334            
Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, options granted                 7,799,061      
Options forfeited                 53,037      
Share-based payment award, options granted, exercise price per share                 $ 1.78      
Share-based payment award, options, compensation cost not yet recognized           $ 16,900,000     $ 16,900,000      
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition           2 years 9 months 18 days            
Outstanding performance and market-based options           13,645,808     13,645,808     5,960,922
Performance Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Stock options were exercised during the period           $ 0            
Common Stock                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Number of shares of common stock issued under ESPP           46,800 35,920          
New Plan                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Common stock reserved for future issuance                   9,348,009    
Share-based payment award, expiration period   10 years                    
Share-based payment award, commencement date   Jan. 01, 2021                    
Share-based payment award, expiration date   Jan. 01, 2030                    
Percentage of automatic increase every year in common stock shares reserved for future issuance   5.00%                    
Share-based payment award, terms of award issuance           The number of shares of common stock reserved for issuance under the New Plan automatically increases on January 1 of each year, for a period of ten years, from January 1, 2021, continuing through January 1, 2030, by 5% of the total number of shares of common stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares as may be determined by the Company’s board of directors.            
New Plan | Restricted Stock Units                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Award vesting period           4 years            
Share-based payment award, RSU/RSA granted           4,300,261            
New Plan | Performance and Market-based Restricted Stock Units                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, RSU/RSA granted       81,233   0            
Performance and market-based restricted stock units of other option forfeited during period               46,562        
Outstsanding performance and market-based RSU's and RSAs           0     0      
Performance and market-based restricted stock units of other option vested during period               34,671        
New Plan | Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, expiration period           10 years            
Share-based payment award, options granted           7,799,061            
Award vesting period           4 years            
Share-based payment award, options, weighted-average grant date fair value           $ 1.35            
New Plan | Market-based Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, options granted       70,233                
Options forfeited               70,233        
New Plan | Performance Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, options granted 70,235                      
Stock options were exercised during the period           $ 0            
Outstanding performance and market-based options           58,346     58,346      
Inducement Plan                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Common stock reserved for future issuance           4,000,000     4,000,000      
Original Options | Performance Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, options granted     2,166,653                  
Award vesting period     3 years 7 months 6 days                  
Share-based payment award, options, weighted-average grant date fair value     $ 0.5                  
Stock-based compensation expense     $ 0                  
Modified Options | Performance Stock Options                        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                        
Share-based payment award, options granted               1,516,655        
Award vesting period           3 years            
Share-based payment award, options, weighted-average grant date fair value               $ 1.28        
Share-based payment award, options, compensation cost not yet recognized           $ 1,600,000     $ 1,600,000      
Share-based payment award, compensation cost not yet recognized, weighted-average period of recognition           1 year 9 months 18 days            
Stock options were exercised during the period           $ 0            
Stock-based compensation expense           $ 300,000            
Outstanding performance and market-based options           1,516,655     1,516,655