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Stock-Based Compensation - Schedule of Stock Based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation costs before income taxes $ 390 $ 389 $ 1,151 $ 1,119
General and administrative        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation costs before income taxes 279 255 801 724
Research and development        
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]        
Stock-based compensation costs before income taxes $ 111 $ 134 $ 350 $ 396