v3.26.3
Equity Incentive Plans and Stock-based Compensation - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Jan. 01, 2026
Dec. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Unrecognized compensation expense $ 8,900,000   $ 8,900,000      
Unrecognized compensation expense, period for recognition (in years)     2 years 7 months 6 days      
Options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Expected dividend rate (as percent) 0.00% 0.00% 0.00% 0.00%    
Total stock-based compensation expense $ 1,292,000 $ 1,496,000 $ 3,812,000 $ 5,373,000    
Options | Income Statement Location [Axis]: us-gaap:CostOfRevenue            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total stock-based compensation expense 0   0      
Options | Income Statement Location [Axis]: us-gaap:ResearchAndDevelopmentExpense            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total stock-based compensation expense 535,000 649,000 1,517,000 2,103,000    
Options | Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total stock-based compensation expense $ 757,000 $ 847,000 $ 2,295,000 $ 3,270,000    
Shares available for grant under 2021 Equity Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares available for grant (in shares) 33,345,527   33,345,527     29,341,567
Additional shares authorized (in shares)     18,672,200      
Percentage of outstanding stock maximum (as percent)     5.00%      
Increase in shares available for grant (in shares)         6,323,480  
Award expiration period (in years)     10 years      
Shares available for grant under 2021 Employee Stock Purchase Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares available for grant (in shares) 6,697,982   6,697,982     5,518,072
Offering purchase period (in months)     6 months      
Additional shares authorized (in shares)     3,734,500      
Percentage of outstanding stock maximum (as percent)     1.00%      
Increase in shares available for grant (in shares)         1,264,696  
Shares available for grant under 2021 Employee Stock Purchase Plan | Employee Stock Purchase Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation arrangement by share-based payment award, maximum employee subscription rate (as percent) 15.00%   15.00%      
Purchase price of common stock (as percent)     85.00%