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Share-based payments - Disclosure of reconciliation of BCEs (Details) - shares |  |  |  |  |  | 12 Months Ended | 130 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
May 14, 2018 | Mar. 15, 2018 | Nov. 20, 2017 | Jan. 23, 2017 | Nov. 07, 2016 | Dec. 31, 2024 | Dec. 31, 2024
Total BCEs |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 385,409 |
Number of instruments issued (in shares) |  |  |  |  |  | 0 | 530,652
Number of instruments lapsed (in shares) |  |  |  |  |  | (51,230) |
Number of instruments exercised (in shares) |  |  |  |  |  | (4,000) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 330,179 | 330,179
Number of instruments exercisable (in shares) |  |  |  |  |  | 245,962 | 245,962
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 330,179 | 330,179
BCE-2016-1 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 22,495 |
Number of instruments issued (in shares) |  |  |  |  | 84,000 | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | (3,699) |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 18,796 | 18,796
Number of instruments exercisable (in shares) |  |  |  |  |  | 18,796 | 18,796
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 18,796 | 18,796
BCE-2017-1 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 67,000 |
Number of instruments issued (in shares) |  |  |  | 67,374 |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | 0 |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 67,000 | 67,000
Number of instruments exercisable (in shares) |  |  |  |  |  | 41,735 | 41,735
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 67,000 | 67,000
BCE-2017-2 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 112,500 |
Number of instruments issued (in shares) |  |  | 150,000 |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | 0 |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 112,500 | 112,500
Number of instruments exercisable (in shares) |  |  |  |  |  | 112,500 | 112,500
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 112,500 | 112,500
BCE-2017-4 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 67,373 |
Number of instruments issued (in shares) |  |  | 67,374 |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | 0 |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 67,373 | 67,373
Number of instruments exercisable (in shares) |  |  |  |  |  | 33,686 | 33,686
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 67,373 | 67,373
BCE-2017-5 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 64,374 |
Number of instruments issued (in shares) |  |  | 67,374 |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | (26,687) |
Number of instruments exercised (in shares) |  |  |  |  |  | (4,000) |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 33,687 | 33,687
Number of instruments exercisable (in shares) |  |  |  |  |  | 16,843 | 16,843
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 33,687 | 33,687
BCE-2018-1 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 11,980 |
Number of instruments issued (in shares) |  | 22,000 |  |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | 0 |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 11,980 | 11,980
Number of instruments exercisable (in shares) |  |  |  |  |  | 11,980 | 11,980
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 11,980 | 11,980
BCE 2018-3 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 16,844 |
Number of instruments issued (in shares) | 33,687 |  |  |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | (16,844) |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 0 | 0
Number of instruments exercisable (in shares) |  |  |  |  |  | 0 | 0
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 0 | 0
BCE-2018-4 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 16,843 |
Number of instruments issued (in shares) | 16,843 |  |  |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | 0 |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 16,843 | 16,843
Number of instruments exercisable (in shares) |  |  |  |  |  | 8,422 | 8,422
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 16,843 | 16,843
BCE-2018-5 |  |  |  |  |  |  |
Disclosure of terms and conditions of share-based payment arrangement [line items] |  |  |  |  |  |  |
Number of instruments outstanding, beginning balance (in shares) |  |  |  |  |  | 6,000 |
Number of instruments issued (in shares) | 22,000 |  |  |  |  | 0 |
Number of instruments lapsed (in shares) |  |  |  |  |  | (4,000) |
Number of instruments exercised (in shares) |  |  |  |  |  | 0 |
Number of instruments outstanding, ending balance (in shares) |  |  |  |  |  | 2,000 | 2,000
Number of instruments exercisable (in shares) |  |  |  |  |  | 2,000 | 2,000
Maximum number of shares to be issued if all conditions are met (in shares) |  |  |  |  |  | 2,000 | 2,000

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- Definition Maximum Number Of Other Equity Instruments To Be Issued In Share-Based Payment Arrangement If All Conditions Are Met + References No definition available. + Details
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- Definition The number of other equity instruments (ie other than share options) granted in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_b&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The number of other equity instruments (ie other than share options) expired in a share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 2 -IssueDate 2024-01-01 -Paragraph 45 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard -URIDate 2024-03-27 + Details
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