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Share Option and Warrant Reserves (Details 1) - yr
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share Option And Warrant Reserves    
Risk-free interest rate 0.36% 1.59%
Expected dividend yield 0.00% 0.00%
Share price volatility 68.00% 62.00%
Expected forfeiture rate 0.00% 0.00%
Expected life (in years - weighted average) 4.90 4.33