Warrants

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Warrants

11. Warrants

A summary of warrant activity during the six months ended June 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, June 30, 2021	2,776,191

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