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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

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June 2, 2020

    

September 30, 2020

 

Volatility rate

 

​

79.0

%  

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81.9

%

Risk-free interest rate

 

​

0.2

%  

​

0.2

%

Expected term (in years)

 

​

3.0

 

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2.7

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Strike price (per share)

​

$

9.00

​

$

9.00

​

Fair value of Series A convertible preferred stock

​

$

4.44

​

$

12.00

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