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BASIC AND DILUTED LOSS PER COMMON SHARE | 3 Months Ended
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Mar. 31, 2021
Earnings Per Share [Abstract] |
Basic and Diluted Loss Per Common Share | BASIC AND DILUTED LOSS PER COMMON SHAREThe calculation of basic and diluted earnings per share after adjustment for the effects of all potential dilutive Common Shares, is as follows:
|  |  | Three months ended March 31,
|  |  |  |  | 2021 |  | 2020
Loss attributable to shareholders |  |  |  |  | $ | (10,908) |  |  | $ | (5,657) |
Basic and diluted weighted average number of common shares outstanding |  |  |  |  | 137,356,604 |  |  | 107,618,908 |
Loss per common share |  |  |  |  | $ | (0.08) |  |  | $ | (0.05) |
For the three months ended March 31, 2021, 5.43 million (March 31, 2020 - 6.12 million) options and warrants have been excluded from the calculation, as their effect would have been anti-dilutive.

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