Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Subsequent events (Details Narrative)

v3.23.1
Subsequent events (Details Narrative)
£ / shares in Units, $ / shares in Units, $ in Millions
 12 Months Ended
Apr. 03, 2023
$ / shares
shares
Mar. 27, 2023
USD ($)
$ / shares
shares
Nov. 30, 2022
$ / shares
shares
Nov. 27, 2022
$ / shares
shares
Aug. 09, 2022
$ / shares
shares
Feb. 10, 2022
$ / shares
shares
Dec. 31, 2022
$ / shares
shares
Dec. 31, 2022
GBP (£)
shares
Dec. 31, 2021
GBP (£)
shares
Dec. 31, 2020
GBP (£)
Apr. 25, 2023
shares
Nov. 24, 2022
$ / shares
shares
Nov. 24, 2022
£ / shares
shares
Nov. 15, 2022
$ / shares
shares
Nov. 15, 2022
£ / shares
shares
Jun. 08, 2022
shares
Aug. 25, 2020
£ / shares
shares
IfrsStatementLineItems [Line Items]                                  
Par value per share | (per share)                       $ 6.51 £ 5.41 $ 7.565 £ 6.362   £ 215.00
Exercise price         $ 0.50 $ 212.50 $ 212.50                    
Net proceeds from the offering | £               £ 3,369,877 £ 285,108 £ 3,898,818              
Number of shares issued | shares         11,678 63,280 1,744,913 [1] 1,744,913 [1] 390,952 [1]     3 3 21 21   15,891
Top of range [member]                                  
IfrsStatementLineItems [Line Items]                                  
Exercise price         $ 25.00                        
Warrant reserve [member]                                  
IfrsStatementLineItems [Line Items]                                  
Number of shares issued | shares           126,560                      
Prefunded warrant [member]                                  
IfrsStatementLineItems [Line Items]                                  
Exercise price       $ 4.999                          
American depositary shares [member]                                  
IfrsStatementLineItems [Line Items]                                  
Shares purchased | shares     2,800,000 155,000                          
Expiration date     expiration dates of May 30, 2025 and May 30, 2028                            
Number of shares issued | shares         3,676 63,280                   230,000  
American depositary shares [member] | Warrant reserve [member] | Top of range [member]                                  
IfrsStatementLineItems [Line Items]                                  
Shares purchased | shares       1,315,000                          
American depositary shares [member] | Prefunded warrant [member]                                  
IfrsStatementLineItems [Line Items]                                  
Exercise price     $ 5.00 $ 5.00                          
Nonadjusting event [member]                                  
IfrsStatementLineItems [Line Items]                                  
Par value per share $ 0.30 $ 1.60                              
Exercise price 5.00                                
Net proceeds from the offering | $   $ 4.6                              
Offering expenses | $   $ 0.9                              
Exercise price 1.00                                
Conversion price $ 0.20                                
Number of shares issued | shares 200,000                                
Exercised prefunded warrants | shares                     1,215,500            
Nonadjusting event [member] | Ordinary shares A [member]                                  
IfrsStatementLineItems [Line Items]                                  
Exercise price   $ 1.599                              
Nonadjusting event [member] | Prefunded warrant [member]                                  
IfrsStatementLineItems [Line Items]                                  
Exercise price   $ 0.001                              
Nonadjusting event [member] | American depositary shares [member]                                  
IfrsStatementLineItems [Line Items]                                  
Shares purchased | shares   215,000                              
Exercise price   $ 1.75                              
Nonadjusting event [member] | American depositary shares [member] | Warrant reserve [member] | Top of range [member]                                  
IfrsStatementLineItems [Line Items]                                  
Shares purchased | shares   3,222,500                              
Nonadjusting event [member] | American depositary shares [member] | Ordinary shares A [member] | Top of range [member]                                  
IfrsStatementLineItems [Line Items]                                  
Shares purchased | shares   3,437,500                              
[1] On November 18, 2022 the Company undertook a reverse share split such that fifty issued ordinary shares were exchanged for one new. As a result of the reverse share split, all references in these financial statements and accompanying notes to units of ordinary shares or per share amounts are reflective of the reverse share split for all periods presented.