Statement Of Changes In Equity [Abstract]
| Concept |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
2021-05-01 to 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2022-04-30 |
As at 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
As at 2021-04-30 |
2020-05-01 to 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
As at 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
2020-05-01 to 2021-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
As at 2020-04-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Statement of changes in equity [line items] | ||||||||||||||||||||||||||||||
| Equity |
5 76 , 5 0 7
GBP
|
2 78, 08 3
GBP
|
34 ,2 11
GBP
|
— | — | — | — | — | — |
69, 3 1 9
GBP
|
34 , 906
GBP
|
9 93 , 0 26
GBP
|
2 7, 0 1 5
GBP
|
— | — |
111,34 0
GBP
|
— |
2 7 7, 8 3 7
GBP
|
5 5 0,18 3
GBP
|
34 ,2 11
GBP
|
1 ,000 ,58 6
GBP
|
— | — | — |
2 2 9, 8 1 4
GBP
|
7,000
GBP
|
25 1,36 2
GBP
|
–
GBP
|
2,0 4 0
GBP
|
1 9, 5 1 5
GBP
|
| Changes in equity [abstract] | ||||||||||||||||||||||||||||||
| Comprehensive income [abstract] | ||||||||||||||||||||||||||||||
| Profit (loss) | — | — | — |
–
GBP
|
31, 439
GBP
|
–
GBP
|
–
GBP
|
31,4 39
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
— |
2 0,77 1
GBP
|
— | — | — | — |
20,77 1
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |
| Other comprehensive income | — | — | — |
190,000
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
19 0
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
232,000
GBP
|
— |
232,000
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |
| Comprehensive income | — | — | — |
190,000
GBP
|
3 1,439
GBP
|
–
GBP
|
–
GBP
|
31,6 29
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
232,000
GBP
|
— |
20,5 39
GBP
|
— | — | — | — |
2 0,77 1
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |
| Increase (decrease) through share-based payment transactions, equity | — | — | — |
7, 7 0 1
GBP
|
–
GBP
|
–
GBP
|
–
GBP
|
7, 7 0 1
GBP
|
–
GBP
|
— | — | — | — |
–
GBP
|
2 7, 2 4 0
GBP
|
— |
2 7, 2 4 0
GBP
|
— | — | — | — |
–
GBP
|
–
GBP
|
–
GBP
|
— | — | — | — | — | — |