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Basis of Presentation and Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Antidilutive Shares Excluded From Computation of Net Loss Per Share
Diluted net loss per common share for the periods presented do not reflect the following potential common shares, as the effect would be antidilutive:
 March 31,
 20202019
Stock options8,373,040  7,777,367  
Restricted stock units1,287,986  —  
Common stock warrants2,677,188  1,866,831  
Employee stock purchase plan43,900  46,161  
Total12,382,114  9,690,359