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Share-Based Compensation - Narrative (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 9 Months Ended
Jan. 01, 2025
shares
Sep. 30, 2025
USD ($)
shares
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
plan
$ / shares
shares
Sep. 30, 2024
USD ($)
Jan. 01, 2024
shares
Dec. 31, 2023
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Number of equity incentive plans | plan       2      
Options and RSU's outstanding (in shares) 10,350,022 11,186,118   11,186,118      
Additional number of shares authorized (in shares) 2,383,545            
Common stock reserved for future issuance (in shares) 3,303,948            
Increase in common stock reserve for future issuance (in shares) 953,418            
2009 Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Stock options issued (in shares)   1,153,861   1,153,861      
Stock options outstanding (in shares)   1,153,861   1,153,861      
Share-based compensation arrangement by share-based payment award, expiration period       10 years      
Exercise of options and vesting of restricted stock units (in shares)       67,300      
Forfeitures (in shares)       19,887      
Compensation expense | $   $ 0.2 $ 0.1 $ 0.4 $ 0.4    
Unrecognized compensation expense, options | $   0.2   0.2      
Unrecognized compensation expense, RSUs | $   $ 0.1   $ 0.1      
Unrecognized compensation expense, recognition period       9 months      
Options and RSU's outstanding (in shares)   1,179,218   1,179,218      
2009 Plan | Minimum              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment arrangement, contractual term       1 year      
2009 Plan | Maximum              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment arrangement, contractual term       4 years      
2023 Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Stock options issued (in shares)   5,298,720   5,298,720      
Stock options outstanding (in shares)   5,298,720   5,298,720      
Exercise of options and vesting of restricted stock units (in shares)       54,906      
Forfeitures (in shares)       574,641      
Compensation expense | $   $ 3.1 $ 1.1 $ 6.4 $ 3.2    
Unrecognized compensation expense, options | $   $ 11.1   $ 11.1      
Unrecognized compensation expense, recognition period       2 years 9 months 18 days      
Options and RSU's outstanding (in shares)   10,006,900   10,006,900     5,585,008
Share reserve increase, number of years       10 years      
Share reserve increase, percentage of common stock       5.00%      
Options granted (in shares)       2,577,713      
Options, weighted average fair value (in dollars per share) | $ / shares       $ 5.04      
RSUs | 2009 Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Restricted stock units outstanding (in shares)   25,357   25,357      
Restricted stock units issued (in shares)   25,357   25,357      
RSUs released (in shares)       8,322      
RSUs | 2023 Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Restricted stock units outstanding (in shares)   687,546   687,546      
Restricted stock units issued (in shares)   687,546   687,546      
RSUs released (in shares)       288,216      
RSUs forfeited (in shares)       52,375      
RSU weighted average fair value (in dollars per share) | $ / shares       $ 4.90      
Employee Stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock reserved for future issuance (in shares)           2,350,530  
Share-based compensation arrangement by share-based payment award, automatic increase period       10 years      
Share-based compensation arrangement by share-based payment award, automatic increase, percentage of total shares       0.02      
Share-based compensation arrangement by share-based payment award, automatic increase, percentage of initial share reserve       2      
Shares purchased in ESPP offering (in shares)       49,939      
Restricted And Performance Stock Units | 2023 Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Restricted stock units outstanding (in shares)   772,312   772,312      
Restricted stock units issued (in shares)   772,312   772,312      
Unrecognized compensation expense | $   $ 3.5   $ 3.5