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Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted - £ / shares
6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Dec. 31, 2021
Incentive Equity Plan [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Exercise price [1]    
Expected volatility [1]    
Dividend yield [1]    
Risk free interest rate [1]    
Incentive Equity Plan [member] | Bottom of range [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Fair value per share1 [1] £ 1.98    
Incentive Equity Plan [member] | Top of range [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Fair value per share1 [1] 2.73    
Incentive Equity Plan – Executive Directors [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Exercise price    
Expected volatility 83.10%    
Dividend yield    
Risk free interest rate 3.74%    
Incentive Equity Plan – Executive Directors [member] | Top of range [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Fair value per share1 £ 4.64    
Incentive Equity Plan – Executive Directors [Member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Exercise price    
Expected volatility   98.00% 53.00%
Dividend yield  
Incentive Equity Plan – Executive Directors [Member] | Bottom of range [member]      
Equity and Share-Based Payments (Details) - Schedule of Fair Value of the Employee Share Options Granted [Line Items]      
Fair value per share1 £ 3.39    
[1] Considering that the Incentive Equity Plan awards vest over time without any further restrictions, the fair value is equal to the Company’s closing stock price as of the grant date.