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Common Stock, Preferred Stock and Warrants (Tables)
3 Months Ended
Mar. 31, 2021
Preferred Stock Common Stock And Warrants [Abstract]  
Summary of Common Stock Warrants Outstanding

In the first quarter of 2021, 750,308 of our common stock warrants were exercised. As of March 31, 2021, the following common stock warrants were outstanding:

 

Warrants Issuance Date

 

Shares Issuable

(in thousands)

 

 

Expiration Date

 

Exercise Price

per Share

 

 

Outstanding as of

March 31, 2021

(in thousands)

 

August 12, 2019

 

 

5,091

 

 

February 12, 2022

 

$

4.50

 

 

 

5,091