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Derivative Liabilities - Schedule of Fair Values of Derivative Liabilities (Details) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 $ / shares | Dec. 31, 2019 $ / shares
Altria Warrant | Share price at valuation date (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 8.18 | 9.97
Altria Warrant | Subscription price (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 19.00 | 19.00
Altria Warrant | Expected annualized volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.91 | 0.82
Altria Warrant | Expected dividend yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0 | 0
Altria Warrant | Weighted Average | Weighted average risk-free interest rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.0030 | 0.0169
Altria Warrant | Weighted Average | Weight average expected life (in years) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected life | 2 years 8 months 4 days | 3 years 2 months 4 days
Pre-emptive Rights | Share price at valuation date (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 8.18 | 9.97
Pre-emptive Rights | Subscription price (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 16.25 | 16.25
Pre-emptive Rights | Expected annualized volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.91 | 0.82
Pre-emptive Rights | Expected dividend yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0 | 0
Pre-emptive Rights | Weighted Average | Weighted average risk-free interest rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.0029 | 0.0173
Pre-emptive Rights | Weighted Average | Weight average expected life (in years) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected life | 2 years | 1 year 3 months
Top-up Rights | Share price at valuation date (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 8.18 | 9.97
Top-up Rights | Subscription price (per share in C$) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 16.25 | 16.25
Top-up Rights | Expected annualized volatility |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.91 | 0.82
Top-up Rights | Expected dividend yield |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0 | 0
Top-up Rights | Weighted Average | Weighted average risk-free interest rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.0026 | 0.0171
Top-up Rights | Weighted Average | Weight average expected life (in years) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected life | 1 year 1 month 9 days | 1 year 7 months 28 days
Pre-emptive Rights and Top-up Rights | Minimum | Weighted average risk-free interest rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.0021 | 0.0166
Pre-emptive Rights and Top-up Rights | Minimum | Weight average expected life (in years) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected life | 3 months | 3 months
Pre-emptive Rights and Top-up Rights | Maximum | Weighted average risk-free interest rate |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Derivative liability, measurement input | 0.0061 | 0.0173
Pre-emptive Rights and Top-up Rights | Maximum | Weight average expected life (in years) |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected life | 5 years 6 months | 6 years

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