Loss per share (Details) - shares	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Earnings per share [line items]
Dilutive effect of convertible instruments on number of ordinary shares	1,922,394	1,031,371
Warrants
Earnings per share [line items]
Dilutive effect of convertible instruments on number of ordinary shares	467,451	546,212
Stock options
Earnings per share [line items]
Dilutive effect of share options on number of ordinary shares	1,454,943	485,159

The number of dilutive potential ordinary shares that relate to the assumed conversion of the entity's convertible instruments.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 33
-IssueDate 2019-01-01
-Paragraph 70
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=33&code=ifrs-tx-2019-en-r&anchor=para_70_b&doctype=Standard
-URIDate 2019-03-27

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- Definition

The number of dilutive potential ordinary shares that relate to the assumed exercise of the entity's share options.

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

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