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BASIC AND DILUTED LOSS PER COMMON SHARE
3 Months Ended
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,
 20212020
Loss attributable to shareholders$(10,908)$(5,657)
Basic and diluted weighted average number of common shares outstanding137,356,604 107,618,908 
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.