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Share-based Payments - Measurement of Fair Value of Share Options Granted (Details) - $ / shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share Based Payment Arrangements [Abstract]    
Weighted average fair market value per option (C$) $ 0.88 $ 0.88
Risk free interest rate 1.54% 2.14%
Expected volatility (based on actual historical volatility) 54.74% 49.45%
Dividend rate 3.30% 0.00%
Expected forfeiture rate (non-executive employees) 0.00% 0.00%
Suboptimal exercise factor 1.25 1.25