Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2023-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Trade and other current receivables [abstract] | |||
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current prepayments and current accrued income other than current contract assets |
107,000
GBP
|
60,000
GBP
|
— |
| Categories of non-current financial assets [abstract] | |||
| Non-current financial assets |
85,775,000
GBP
|
85,269,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
27,280,000
GBP
|
21,683,000
GBP
|
23,397,000
GBP
|
| Trade and other current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current accruals and current deferred income including current contract liabilities |
169,000
GBP
|
152,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
6,166,000
GBP
|
5,456,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Capital redemption reserve |
771,000
GBP
|
602,000
GBP
|
— |
| Capital reserve |
63,561,000
GBP
|
64,849,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets (liabilities) |
112,993,000
GBP
|
106,860,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
27,387,000
GBP
|
21,743,000
GBP
|
— |
| Current assets (liabilities) |
27,218,000
GBP
|
21,591,000
GBP
|
— |