Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2018

Equity [Abstract]

Summary of Terms of Outstanding Warrants

The following table summarizes certain terms of all of the Company’s outstanding warrants at December 31, 2018 and 2017:

			Exercise		Total Common Shares Issuable as of December 31,
Title of Warrant	Date Issued	Expiry Date	Price		2018		2017
Equity-classified warrants
May 2015 – private placement warrants	3/18/2015	3/18/2020	$	0.85		917,149		917,149
June 2016 – Note and Warrant Agreement	6/7/2016	6/7/2021	$	0.30		2,284,000		2,374,000
March 2017 – private placement warrants	3/22/2017	3/22/2022	$	0.30		3,441,195		3,807,861
Total						6,642,344		7,099,010