XML 41 R28.htm IDEA: XBRL DOCUMENT v3.21.2
Stockholders' Equity - Black Scholes Option Pricing Model (Details)
9 Months Ended
Sep. 30, 2021
Expected dividend 0.00%
Expected volatility 122.00%
Expected life 10 years
Minimum  
Risk-free interest rate 1.49%
Maximum  
Risk-free interest rate 1.62%