Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Schedule of potentially dilutive securities not included in the calculation of diluted net loss per share because to do so would be anti-dilutive

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,
	2018	2017	2018	2017
Common stock options	1,766,047	—	1,646,198	—
Common stock warrants	11,488,628	7,256,368	11,442,505	6,855,779
Total	13,254,675	7,256,368	13,088,703	6,855,779