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Financial instruments (Tables)
6 Months Ended
Jun. 30, 2022
Disclosure of financial liabilities [line items]  
Schedule of financial liabilities measured at fair value

Financial liabilities at fair value through profit and loss:

June 30, 2022

December 31, 2021

£000

£000

    

Level 1

    

Level 2

    

Level 3

    

Level 1

    

Level 2

    

Level 3

Convertible Senior Secured Notes

 

 

 

92,450

 

 

 

112,799

Warrant liabilities

 

6,187

 

 

 

10,730

 

 

 

6,187

 

 

92,450

 

10,730

 

 

112,799

Schedule of measurement inputs for level 3 fair value financial liabilities

The fair value of the convertible senior secured notes has been estimated using a binomial lattice framework. The following inputs have been used:

    

June 30, 2022

    

December 31, 2021

 

Risk-free rate

 

3.00

%  

1.25

%

Dividend yield

 

 

Volatility

 

52.5

%  

52.5

%

Credit spread

 

21.8

%  

21.8

%