Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation - Summary of Option Activity Under 2020 Plan, 2011 Plan and Inducement Plan (Details)

v3.26.3
Stock-Based Compensation - Summary of Option Activity Under 2020 Plan, 2011 Plan and Inducement Plan (Details) - 2020 Plan, 2011 Plan and Inducement Plan [Member]
$ / shares in Units, $ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]    
Number of Shares Outstanding, Beginning Balance | shares 38,204,120  
Number of Shares, Granted | shares 13,667,142  
Number of Shares, Exercised | shares 525,497  
Number of Shares, Forfeited | shares 37,152  
Number of Shares, Cancelled | shares 70,253  
Number of Shares Outstanding, Ending Balance | shares 51,238,360 38,204,120
Number of Shares, Exercisable | shares 18,231,752  
Number of Shares, Vested or expected to vest | shares 51,238,360  
Weighted Average Exercise Price, Outstanding Beginning Balance | $ / shares $ 2.12  
Weighted Average Exercise Price ,Granted | $ / shares 1.99  
Weighted Average Exercise Price ,Exercised | $ / shares 1.26  
Weighted Average Exercise Price ,Forfeited | $ / shares 1.75  
Weighted Average Exercise Price ,Cancelled | $ / shares 1.33  
Weighted Average Exercise Price, Outstanding Ending Balance | $ / shares 2.1 $ 2.12
Weighted Average Exercise Price, Exercisable | $ / shares 1.85  
Weighted Average Exercise Price, Vested or expected to vest | $ / shares $ 2.1  
Weighted Average Remaining Contractual Term (In Years) 8 years 6 months 14 days 8 years 11 months 19 days
Weighted Average Remaining Contractual Term (In Years), Exercisable 8 years 1 month 17 days  
Weighted Average Remaining Contractual Term (In Years), Vested or expected to vest 8 years 6 months 14 days  
Aggregate Intrinsic Value | $ $ 8.2 $ 7.7
Aggregate Intrinsic Value, Exercisable | $ 5.9  
Aggregate Intrinsic Value, Vested or expected to vest | $ $ 8.2