XML 41 R29.htm IDEA: XBRL DOCUMENT v3.20.2
Warrants to acquire shares of Series A convertible preferred stock (Tables)
9 Months Ended
Sep. 30, 2020
Warrants to acquire shares of Series A convertible preferred stock  
Summary of fair value of the warrants inputs

    

June 2, 2020

    

September 30, 2020

 

Volatility rate

 

79.0

%  

81.9

%

Risk-free interest rate

 

0.2

%  

0.2

%

Expected term (in years)

 

3.0

 

2.7

Strike price (per share)

$

9.00

$

9.00

Fair value of Series A convertible preferred stock

$

4.44

$

12.00