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Common Stock (Tables)
 12 Months Ended
Dec. 31, 2019
Stockholders Equity Note [Abstract]  
Schedule of Number of Shares of Common Stock Reserved for Future Issuance As of December 31, 2019 and 2018, the Company has reserved the following number of shares of common stock for future issuance upon the exercise of options, vesting of restricted stock units or grant of equity awards

 

 

 

As of December 31,

 

 

 

2019

 

 

2018

 

Options issued and outstanding

 

 

2,562,800

 

 

 

1,122,677

 

Unvested restricted stock units

 

 

828,935

 

 

 

24,960

 

Options available for future grants

 

 

212,308

 

 

 

1,350,582

 

Shares available for issuance under the 2018 ESPP

 

 

555,583

 

 

 

275,030

 

Total

 

 

4,159,626

 

 

 

2,773,249