v3.25.2
Stock Incentive Plan - Schedule of Share-Based Payment Arrangement, Activity (Details) - $ / shares
3 Months Ended 6 Months Ended 12 Months Ended
Jan. 01, 2025
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Number of Options            
Grants (in shares)     0   0  
QT Imaging Incentive Plan And 2024 Equity Incentive Plan            
Number of Options            
Beginning balance, outstanding (in shares) 1,955,000     1,955,000    
Cancelled (in shares)       (200,001)    
Ending balance, outstanding (in shares)   3,320,999   3,320,999   1,955,000
Exercisable (in shares)   1,002,070   1,002,070    
Vested and expected to vest (in shares)   3,320,999   3,320,999    
Weighted- Average Exercise Price            
Beginning balance, outstanding (in dollars per share) $ 0.75     $ 0.75    
Cancelled (in dollars per share)       0.75    
Ending balance, outstanding (in dollars per share)   $ 0.71   0.71   $ 0.75
Exercisable (in dollars per share)   0.73   0.73    
Vested and expected to vest (in dollars per share)   $ 0.71   $ 0.71    
Weighted-Average Remaining Contractual Life (years)            
Outstanding (in years)       9 years 1 month 6 days   9 years 6 months
Exercisable (in years)       8 years 3 months 18 days    
Vest and expected to vest (in years)       9 years 1 month 6 days    
Revised outstanding (in shares)           264,000
2024 Equity Incentive Plan            
Number of Options            
Grants (in shares) 1,338,411 1,566,000   1,566,000    
Weighted- Average Exercise Price            
Granted under the 2024 Incentive Plan (in dollars per share)       $ 0.67