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Stockholders' Equity - Stock Repurchase Plan - Additional Information (Details) - USD ($)
3 Months Ended
Apr. 06, 2022
Mar. 31, 2022
Mar. 31, 2021
Sep. 30, 2019
Feb. 28, 2019
Feb. 29, 2016
2019 Stock Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock reserved for issuance (in shares)         6,000,000.0  
Shares available for grant under the plan (in shares)   900,000        
2016 Stock Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Outstanding common stock repurchase program authorized amount (up to)           $ 50,000,000.0
Shares repurchased during period (in shares)   0 0      
Remaining authorized repurchase amount   $ 16,300,000        
2019 Inducement Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock reserved for issuance (in shares)       500,000    
Shares available for grant under the plan (in shares)   29,600        
2019 Inducement Plan | Subsequent Event            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares granted 29,507