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WARRANT LIABILITY (Tables) | 12 Months Ended
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Dec. 31, 2020
Schedule of Change in Warrant Liability |
|  | December 31, 2020 |  |  | December 31, 2019 |
Balance at beginning of the period |  | $ | 1,579 |  |  | $ | 2,009 |
Fair value adjustment |  |  | 650 |  |  |  | (520 | )
Effect of movement in exchange rates |  |  | 66 |  |  |  | 90 |
Balance at end of the period |  | $ | 2,295 |  |  | $ | 1,579 |
Schedule of Warrants Outstanding and Exercisable |
|  | Underlying Shares |  |  | Weighted Average Exercise Price |
Warrants outstanding and exercisable, January 1, 2019 |  |  | 10,778,061 |  |  |  | $1.20 |
Issued |  |  | 464,122 |  |  |  | C$0.85 |
Expired |  |  | (3,602,215 | ) |  |  | $1.99 |
Warrants outstanding and exercisable, December 31, 2019 |  |  | 7,639,968 |  |  |  | $0.79 |
Exercised |  |  | (4,195,072 | ) |  |  | $0.80 |
Exercised |  |  | (464,122 | ) |  |  | C$0.85 |
Warrants outstanding and exercisable, December 31, 2020 |  |  | 2,980,774 |  |  |  | $0.80 |
|  |  |  |  | All Warrants Outstanding and Exercisable |
Expiry Date |  | Exercise Price per Share |  |  | December 31, 2020 |  |  | December 31, 2019 |
July 30, 2020 |  | C$ | 0.85 |  |  |  | - |  |  |  | 464,122 |
September 25, 2023 |  | $ | 0.80 |  |  |  | 2,980,774 |  |  |  | 7,175,846 |
|  |  |  |  |  |  | 2,980,774 |  |  |  | 7,639,968 |
Schedule of Fair Value of Warrant Liability |
|  | December 31, 2020 |  |  | December 31, 2019 |
Weighted average assumptions: |  |  |  |  |  |
Risk-free interest rate |  |  | 0.20 | % |  |  | 1.68 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Expected warrant life (years) |  |  | 2.73 |  |  |  | 3.57 |
Expected stock price volatility |  |  | 73.93 | % |  |  | 61.61 | %
Weighted average fair value |  | $ | 0.77 |  |  | $ | 0.22 |

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