Statement Of Cash Flows [Abstract]
| Concept |
2022-04-01 to 2023-03-31 |
2021-04-01 to 2022-03-31 |
|---|---|---|
| Statement of cash flows [abstract] | ||
| Cash flows from (used in) operating activities [abstract] | ||
| Adjustments for decrease (increase) in trade and other receivables |
47,000
GBP
|
1,570,000
GBP
|
| Adjustments for increase (decrease) in trade and other payables |
17,000
GBP
|
1,633,000
GBP
|
| Adjustments for decrease (increase) in financial assets measured at fair value through profit or loss | — | — |
| Adjustments for decrease (increase) in financial assets at fair value through profit or loss, mandatorily measured at fair value | — | — |
| Adjustments for decrease (increase) in financial assets held for trading |
1,540,000
GBP
|
2,860,000
GBP
|
| Cash flows from (used in) investing activities [abstract] | ||
| Purchase of financial instruments, classified as investing activities |
17,699,000
GBP
|
15,360,000
GBP
|
| Proceeds from sales or maturity of financial instruments, classified as investing activities |
17,067,000
GBP
|
25,495,000
GBP
|
| Cash flows from (used in) financing activities [abstract] | ||
| Proceeds from issue of ordinary shares |
17,815,000
GBP
|
1,298,000
GBP
|
| Payments for share issue costs |
501,000
GBP
|
41,000
GBP
|