Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Schedule of Potentially Dilutive Securities not included in the Calculation of Diluted Net Loss per Share

The following table presents the weighted-average number of common share equivalents, calculated using the treasury stock method, as well as certain shares that are contingently issuable, not included in the calculation of diluted net loss per share due to the anti-dilutive effect of the securities:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021	2020	2021	2020
Common stock options	2,244,669	2,415,979	2,445,016	2,262,174
Common stock warrants	7,605,764	9,092,807	7,749,909	9,451,913
Unvested restricted stock units	658,971	398,263	597,542	314,588
Total	10,509,404	11,907,049	10,792,467	12,028,675