Revenue (Details) - Schedule of contract balances £ in Thousands	Jun. 30, 2021 GBP (£)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 GBP (£)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 GBP (£)
Schedule of contract balances [Abstract]
Trade receivables	£ 12,715	$ 7,243	£ 7,243	$ 291	£ 291
Contract assets	153	$ 599	599	$ 8	8
Contract liabilities	£ (15,668)		£ (9,059)		£ (385)

No definition available.

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- Definition

The amount of an entity’s right to consideration in exchange for goods or services that the entity has transferred to a customer, when that right is conditioned on something other than the passage of time (for example, the entity’s future performance).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-IssueDate 2021-01-01
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-URIDate 2021-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of an entity’s obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The amount due from customers for goods and services sold.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 78
-Subparagraph b
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+ Details

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