Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2019

Accounting Policies [Abstract]

Schedule of potentially dilute loss per share

Securities that could potentially dilute loss per share in the future that were not included in the computation of diluted loss per share at September 30, 2019 and 2018 are as follows:

	As of September 30,
	2019		2018
Convertible preferred stock		688		688
Warrants to purchase common stock		285,273		294,072
Options to purchase common stock		88,950		124,392
Total		374,911		419,152