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Equity (Details 2)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Risk-free interest rate 0.73%  
Expected life in years 5 years 4 months 17 days  
Expected Volatility 102.07%  
Expected dividend yield 0.00% 0.00%
Minimum [Member]    
Risk-free interest rate   0.021%
Expected life in years   3 years 3 months
Expected Volatility   103.56%
Maximum [Member]    
Risk-free interest rate   1.67%
Expected life in years   6 years
Expected Volatility   110.71%