Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

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, not included in the calculation of diluted net loss per share due to the anti-dilutive effect of the securities:

	Three Months Ended June 30,		Six Months Ended June 30,
	2020	2019	2020	2019
Common stock options	2,112,690	2,371,908	2,145,789	2,347,335
Common stock warrants	9,623,913	10,417,753	9,658,342	10,710,055
Total	11,736,603	12,789,661	11,804,131	13,057,390