Warrants

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Warrants

11. Warrants

A summary of warrant activity during the three months ended March 31, 2021 is as follows:

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

As of March 31, 2021, all of the common stock warrants that were previously classified as a liability were exercised in full.