XML 31 R20.htm IDEA: XBRL DOCUMENT v3.21.1
Capital Stock (Tables)
3 Months Ended
Mar. 31, 2021
Capital Stock  
Schedule of Classification of warrants to equity

 

 

 

 

 

 

Risk-free interest rate

    

 

0.88

%

Expected volatility

 

 

106.7

%

Expected term

 

 

2

months

Expected dividend yield

 

 

 —

 

Exercise price

 

$

3.70

 

Market value of common stock

 

$

3.11