Warrants (Tables)

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Summary of Warrant Activity

A summary of warrant activity during the nine months ended September 30, 2020 is as follows:

Warrants outstanding, December 31, 2019	10,384,706
Issuances	1,631,794
Exercises	(10,238,889	)
Warrants outstanding, September 30, 2020	1,777,611

Summary of Periodic Changes in Fair Value of Warrant Liability

For warrants classified as a liability, the following is a summary of the periodic changes in their fair value during the nine months ended September 30, 2020:

Balance, December 31, 2019	$	10,000
Changes in fair value		—
Balance, September 30, 2020	$	10,000