Finance and Other Income - Summary of Finance and Other Income (Details) - GBP (£) £ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Miscellaneous other comprehensive income [abstract]
Bank interest receivable	£ 23	£ 10	£ 129
Accretion on U.S Treasury Bills	203
Net foreign exchange gains	1,046
Total Finance and other income	£ 1,272	£ 10	£ 129

The amount of income or expense arising from interest. [Refer: Interest expense; Interest income]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2022-03-24
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-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2022-03-24
-Paragraph 23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2022-en-r&anchor=para_23&doctype=Standard
-URIDate 2022-03-24

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 85
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_85&doctype=Standard
-URIDate 2022-03-24

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