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Loss per share (Tables)
12 Months Ended
Dec. 31, 2019
Loss Per Share Tables Abstract  
Schedule of consolidated comprehensive loss

    2019     2018     2017  
Loss attributed to shareholders     (10,825 )     (22,022 )     (19,729 )
Basic weighted average number of shares (in 000s)     25,545       22,714       18,381  
Basic and diluted loss per share     (0.42 )     (0.97 )     (1.07 )