v3.23.1
Related-party transactions - Additional Information (Detail)
3 Months Ended 9 Months Ended 12 Months Ended
Feb. 09, 2023
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2023
USD ($)
Mar. 31, 2022
USD ($)
Jun. 30, 2022
£ / shares
shares
Mar. 31, 2023
£ / shares
Mar. 31, 2023
USD ($)
shares
Feb. 09, 2023
£ / shares
shares
Feb. 09, 2023
$ / shares
shares
Related Party Transaction [Line Items]                    
Loans and Leases Receivable       0.075   0.075        
Common stock shares issued | shares           74,760,432   93,781,478 3,699,910 3,699,910
Common stock par or stated value per share | £ / shares           £ 0.0025 £ 0.0025   £ 0.90  
Gross Cash Proceeds $ 20,300,000                  
Ordinary Shares                    
Related Party Transaction [Line Items]                    
Common stock shares issued | shares                 3,699,910 3,699,910
Common stock par or stated value per share | £ / shares                 £ 0.90  
American Depository Shares                    
Related Party Transaction [Line Items]                    
Common stock shares issued | shares                 7,511,525 7,511,525
Common stock par or stated value per share | $ / shares                   $ 2.17
Mount Sinai [Member]                    
Related Party Transaction [Line Items]                    
Amount due to related party               $ 2,500,000    
ordinary shares subscribed | shares                 1,382,489 1,382,489
Mount Sinai [Member] | American Depository Shares                    
Related Party Transaction [Line Items]                    
Common stock par or stated value per share | $ / shares                   $ 2.17
Capital Unit, Class A [Member] | Mount Sinai [Member]                    
Related Party Transaction [Line Items]                    
Equity method investment shares | shares               750    
Ekf Diagnostics [Member]                    
Related Party Transaction [Line Items]                    
Related party transaction expenses   $ 30,000.00 $ 100,000 $ 80,000.00 $ 200,000          
Icahn School Of Medicine At Mount Shenai [Member]                    
Related Party Transaction [Line Items]                    
Related party transaction expenses   1,000,000.0 200,000 1,400,000 2,900,000          
Christopher Mills [Member] | Ordinary Shares                    
Related Party Transaction [Line Items]                    
ordinary shares subscribed | shares                 346,375 346,375
Common stock par or stated value per share | $ / shares                   $ 0.90
Kantaro Bio Sciences LLC Member                    
Related Party Transaction [Line Items]                    
Loan commitment to related party               $ 80,000.00    
Equity method investment ownership percentage           25.00%   25.00%    
Payment towards advances to related parties       250,000            
Carrying value of investment written down       $ 0            
Kantaro Bio Sciences LLC Member | Compounded Monthly [Member]                    
Related Party Transaction [Line Items]                    
Related party transaction interest rate       0.25%            
Kantaro Bio Sciences LLC Member | Mount Sinai [Member]                    
Related Party Transaction [Line Items]                    
Loan commitment to related party               $ 300,000    
Additional loan commitment to related party               $ 500,000    
Equity method investment ownership percentage               75.00%    
Kantaro Bio Sciences LLC Member | Advisory Agreement [Member]                    
Related Party Transaction [Line Items]                    
Period of service agreement with related party       5 years            
Due to affiliates               $ 0.0    
Recognised amount for services performed under agreement   0.0 100,000 $ 20,000.00 100,000          
Kantaro Bio Sciences LLC Member | Advisory Agreement [Member] | Valuation Technique, Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member]                    
Related Party Transaction [Line Items]                    
Due to affiliates               $ 2,000,000.0    
Kantaro Bio Sciences LLC Member | Advisory Agreement [Member] | Capital Unit, Class A [Member]                    
Related Party Transaction [Line Items]                    
Equity method investment shares | shares               250    
Kantaro Bio Sciences LLC Member | Advisory Agreement [Member] | Capital Unit, Class A [Member] | Valuation Technique, Discounted Cash Flow [Member] | Fair Value, Inputs, Level 3 [Member]                    
Related Party Transaction [Line Items]                    
Equity method investments at fair value               $ 2,000,000.0    
Kantaro Bio Sciences LLC Member | Commitment To Lend Additional Amount [Member]                    
Related Party Transaction [Line Items]                    
Additional loan commitment to related party               $ 170,000    
Kantaro Bio Sciences LLC Member | Research and Development [Member] | Advisory Agreement [Member]                    
Related Party Transaction [Line Items]                    
Costs incurred related to the performance of the services   0.0 10,000.00 10,000.00 100,000          
Kantaro Bio Sciences LLC Member | General and Administrative [Member] | Advisory Agreement [Member]                    
Related Party Transaction [Line Items]                    
Costs incurred related to the performance of the services   $ 0.0 $ 20,000.00 $ 10,000.00 $ 60,000.00