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Equity (Details 4) - Warrants [Member]
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]    
Expected dividend yield 0.00% 0.00%
Expected forfeiture rate 0.00% 0.00%
Bottom of range [member]    
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]    
Risk-free interest rate 0.32% 0.64%
Expected life 3 years 6 months 5 years
Expected volatility in market price of shares 50.00% 50.00%
Top of range [member]    
Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items]    
Risk-free interest rate 0.39% 2.05%
Expected life 7 years 7 years
Expected volatility in market price of shares 77.00% 55.00%