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Stockholders' Equity (Tables)
 6 Months Ended
Jun. 30, 2021
Equity [Abstract]  
Schedule of Common Stock Reserved for Future Issuance Common stock reserved for future issuance upon the exercise, issuance or conversion of the respective equity instruments at June 30, 2021 are as follows:
 
Issued and Outstanding:
Stock options3,731,808 
Shares Reserved For:
2017 Equity Incentive Plan
3,192,182 
2017 Employee Stock Purchase Plan1,271,237 
Total8,195,227