Cash and Cash Equivalents (Details) - Schedule of cash and cash equivalents - GBP (£) £ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Schedule of cash and cash equivalents [Abstract]
Cash held in short term deposit accounts	£ 32,373	£ 52,742
Cash and cash equivalents	27,974	190,782
Cash and cash equivalents in the statement of cash flows	£ 60,347	£ 243,524

A classification of cash equivalents representing short-term deposits. [Refer: Cash equivalents]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 45
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard
-URIDate 2021-03-24

Name:	ifrs-full_ShorttermDepositsClassifiedAsCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant