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Stockholders' Equity - Employee Stock Purchase Plan (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Jan. 01, 2024
Apr. 27, 2016
Stockholders' Equity            
Stock-based compensation expense $ 1,860 $ 1,808 $ 3,899 $ 3,831    
2016 Plan            
Stockholders' Equity            
Shares reserved 6,615,454   6,615,454      
Employee Stock Purchase Plan            
Stockholders' Equity            
Purchase price of common stock under plan (as a percent)     85.00%      
Offering period (in months)     6 months      
Shares reserved 1,497,964   1,497,964   236,003 1,600,000
Incremental share increase (as a percent)     1.00%      
Incremental share increase (in shares)     500,000      
Stock-based compensation expense $ 100 $ 100 $ 200 $ 300