Warrants

9 Months Ended

Sep. 30, 2021

Equity [Abstract]

Warrants

11. Warrants

A summary of warrant activity during the nine months ended September 30, 2021 is as follows:

Warrants outstanding, December 31, 2020	1,777,611
Exchanges (see Note 10)	1,000,000
Exercises	(1,420)
Warrants outstanding, September 30, 2021	2,776,191

As of September 30, 2021, all of the common stock warrants that were previously classified as a liability were exercised in full.