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Equity (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Number of shares    
Number of warrants, opening balance 3,426 2,996
Number of warrants, Granted 430
Number of warrants, Exercised  
Number of warrants, cancelled (1,990)  
Number of warrants, closing balance 1,436 3,426