v3.25.2
Stock Incentive and Employee Benefit Plan (Additional Information) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jul. 01, 2024
Feb. 13, 2023
Oct. 17, 2022
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Jun. 18, 2024
Jan. 17, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Number of option outstanding to purchase common stock       1,010,000       1,010,000   1,028,000    
Common stock, shares outstanding       5,497,431       5,497,431   5,235,377    
Options granted weighted-average grant date fair value               $ 3.76        
Stock-based compensation       $ 3,279,000 $ 3,314,000 $ 3,613,000 $ 3,558,000 $ 6,593,000 $ 7,171,000      
Employee benefit plan contributions by employer       100,000   100,000   300,000 200,000      
Stock issued for services, shares 285,714 114,286                    
Accrued legal fees       $ 0       $ 0        
Common stock, shares issued       6,955,694       6,955,694   6,951,622 3,250,000  
2022 Equity Incentive Plan                        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Number of option outstanding to purchase common stock       1,009,938       1,009,938        
Common stock shares reserved for future issuance       716,085       716,085        
2023 Inducement Plan                        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Number of shares available for grant                       40,000
Stock-based compensation       $ 3,300,000   3,600,000   $ 6,600,000 7,200,000      
Unrecognized compensation cost related to unvested stock option grants       $ 20,700,000       $ 20,700,000        
Weighted average period over grant               1 year 9 months 18 days        
2022 Employee Stock Purchase Plan                        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Common stock shares reserved for future issuance       127,902       127,902        
Stock-based compensation       $ 26,600   $ 63,700   $ 76,800 $ 100,000      
Shares issued under ESPP, shares               4,072        
Purchase price of the common stock percentage     85.00%                  
2022 Employee Stock Purchase Plan | Maximum [Member]                        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Common stock shares reserved for future issuance       170,573       170,573        
Semnur 2024 Stock Option Plan                        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]                        
Common stock shares reserved for future issuance       40,000,000       40,000,000