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Stock-Based Awards - Additional Information (Details) - Common Stock - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jan. 01, 2020
Stock-Based Awards        
Issuance of common stock in connection with employee stock purchase plan, shares 104,579 84,238    
2014 Stock Incentive Plan        
Stock-Based Awards        
Increased number of shares of common stock reserved for issuance       1,659,218
Options granted to purchase shares of common stock 126,100   1,816,950  
Exercise price (in dollars per share) $ 8.58   $ 4.69  
Number of shares of common stock available for issuance 823,571   823,571  
2014 Employee Stock Purchase Plan        
Stock-Based Awards        
Increased number of shares of common stock reserved for issuance       207,402
Issuance of common stock in connection with employee stock purchase plan, shares 104,579   104,579  
Number of shares of common stock available for issuance 580,790   580,790