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Stockholder's Equity (Tables)
12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Schedule of Common Stock Shares Reserved for Future Issuance
The Company had reserved shares of common stock for issuance as follows:
December 31,
20192018
Options issued and outstanding1,503,247  2,094,137  
Unvested restricted stock units886,030  547,891  
Common stock warrants issued and outstanding—  4,857  
Shares available for grant under future stock plans6,709,235  5,607,014  
Shares available for future issuance9,098,512  8,253,899