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Stock-Based Compensation - Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Stock-based compensation        
Total stock-based compensation expense $ 1,603 $ 1,442 $ 4,701 $ 4,560
Selling, general and administrative        
Stock-based compensation        
Total stock-based compensation expense 1,509 1,308 4,434 3,502
Research and development        
Stock-based compensation        
Total stock-based compensation expense $ 94 $ 134 $ 267 $ 1,058