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Acquisition of Prismic Pharmaceutical - Schedule of black scholes options pricing model (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 28, 2019 Year $ / shares | Dec. 31, 2019 $ / shares | Dec. 31, 2018 $ / shares
Warrants [Abstract] |  |  |
Grant date share price |  | $ 32.16 |
Expected dividend yield |  | 0.00% | 0.00%
Expected life (years) |  |  | 2 years
Annualized volatility |  | 100.00% | 100.00%
Bottom of range |  |  |
Warrants [Abstract] |  |  |
Grant date share price |  |  | $ 4.42
Exercise price |  | $ 2.61 | $ 4.42
Risk free interest rate |  | 1.41% | 1.70%
Expected life (years) |  | 1 year 4 months 20 days |
Top of range |  |  |
Warrants [Abstract] |  |  |
Grant date share price |  |  | $ 18.09
Exercise price |  | $ 26.73 | $ 26.13
Risk free interest rate |  | 1.52% | 2.17%
Expected life (years) |  | 6 years 6 months 18 days |
Prismic Pharmaceuticals Inc. ("Prismic") |  |  |
Share Options [Abstract] |  |  |
Grant date share price | $ 32.16 |  |
Expected dividend yield | 0.00% |  |
Annualized volatility | 100.00% |  |
Warrants [Abstract] |  |  |
Grant date share price | $ 32.16 |  |
Expected dividend yield | 0.00% |  |
Annualized volatility | 100.00% |  |
Prismic Pharmaceuticals Inc. ("Prismic") | Bottom of range |  |  |
Share Options [Abstract] |  |  |
Exercise price | $ 2.61 |  |
Risk free interest rate | 1.39% |  |
Expected life | Year | 0.98 |  |
Warrants [Abstract] |  |  |
Exercise price | $ 2.61 |  |
Risk free interest rate | 1.41% |  |
Expected life (years) | 1 year 4 months 20 days |  |
Prismic Pharmaceuticals Inc. ("Prismic") | Top of range |  |  |
Share Options [Abstract] |  |  |
Exercise price | $ 17.89 |  |
Risk free interest rate | 1.66% |  |
Expected life | Year | 16.21 |  |
Warrants [Abstract] |  |  |
Exercise price | $ 26.73 |  |
Risk free interest rate | 1.52% |  |
Expected life (years) | 6 years 6 months 18 days |  |

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