Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
12,145,000
GBP
|
12,285,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets other than goodwill [abstract] | |||
| Intangible assets other than goodwill |
4,239,000
GBP
|
5,208,000
GBP
|
— |
| Goodwill |
37,313,000
GBP
|
38,203,000
GBP
|
— |
| Investment property [abstract] | |||
| Investment property |
–
GBP
|
6,200,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Current prepayments and current accrued income other than current contract assets [abstract] | |||
| Current prepayments [abstract] | |||
| Current prepayments |
7,553,000
GBP
|
4,268,000
GBP
|
— |
| Trade and other current receivables |
38,520,000
GBP
|
41,832,000
GBP
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets |
22,673,000
GBP
|
33,225,000
GBP
|
— |
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
128,288,000
GBP
|
121,558,000
GBP
|
108,302,000
GBP
|
| Trade and other current payables [abstract] | |||
| Current payables on social security and taxes other than income tax |
11,452,000
GBP
|
10,135,000
GBP
|
— |
| Trade and other current payables |
54,269,000
GBP
|
50,062,000
GBP
|
— |
| Trade and other payables [abstract] | |||
| Accruals and deferred income including contract liabilities [abstract] | |||
| Deferred income including contract liabilities [abstract] | |||
| Deferred income including contract liabilities |
46,358,000
GBP
|
44,954,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
618,000
GBP
|
629,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
90,478,000
GBP
|
112,024,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
1,630,000
GBP
|
35,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Reserve of share-based payments |
36,907,000
GBP
|
31,228,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
267,058,000
GBP
|
278,844,000
GBP
|
— |
| Liabilities |
129,073,000
GBP
|
122,031,000
GBP
|
— |
| Assets (liabilities) |
137,985,000
GBP
|
156,813,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
202,433,000
GBP
|
205,286,000
GBP
|
— |
| Current liabilities |
121,239,000
GBP
|
113,235,000
GBP
|
— |
| Assets less current liabilities [abstract] |