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Finance income, finance costs and changes in the fair value of financial instruments - Summary of Finance Costs (Detail) - GBP (£) £ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Disclosure of Other Income Expenses And Adjustment [Line Items]
Interest on convertible loan notes	£ (1,567)	£ (1,792)
Interest on lease liabilities	(113)	(105)
Discounting of provision for deferred cash consideration	(163)	(72)
Other	(16)	(18)
Total	£ (1,859)	£ (1,987)

X

- Definition

The amount of costs associated with financing activities of the entity.

+ References

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- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

+ References

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- Definition

The amount of finance costs that the entity does not separately disclose in the same statement or note. [Refer: Finance costs]

+ References

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- Definition

Disclosure of ther income expenses and adjustment lineitem

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No definition available.

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- Definition

Fair value increase or decrease in deferred cash consideration provision.

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- Definition

Interest charges on convertible loan.

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