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Equity (Details 2)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Risk-free interest rate 0.73%  
Expected life in years 5 years 4 months 17 days  
Weighted Avg. Expected Volatility 102.07%  
Expected dividend yield 0.00% 0.00%
Minimum [Member]    
Risk-free interest rate   0.21%
Expected life in years   3 years 3 months
Weighted Avg. Expected Volatility   97.20%
Maximum [Member]    
Risk-free interest rate   1.67%
Expected life in years   6 years
Weighted Avg. Expected Volatility   110.71%