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Share capital (Tables) | 6 Months Ended
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Jun. 30, 2023
Share capital [Abstract] |
Issued share capital |
Issued share capital |  | Ordinary |  |  | Deferred |
(0.2p per share, except deferred shares which are 0.01p per share) |  | shares |  |  | shares |
At January 1, 2023 |  |  | 48,088,346 |  |  |  | 5,793,501 |
Exercise of share options |  |  | 853,003 |  |  |  | — |
At June 30, 2023 |  |  | 48,941,349 |  |  |  | 5,793,501 |

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- Definition The disclosure of classes of share capital. [Refer: Share capital [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 79 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_79_a&doctype=Standard -URIDate 2023-03-23 + Details
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