Subclassifications Of Assets, Liabilities And Equities [Abstract]
| Concept |
As at 2024-04-30 |
As at 2023-04-30 |
As at 2022-04-30 |
|---|---|---|---|
| Subclassifications of assets, liabilities and equities [abstract] | |||
| Property, plant and equipment [abstract] | |||
| Property, plant and equipment |
105,337,000
GBP
|
101,243,000
GBP
|
— |
| Intangible assets and goodwill [abstract] | |||
| Intangible assets and goodwill |
25,900,000
GBP
|
25,448,000
GBP
|
— |
| Investments accounted for using equity method [abstract] | |||
| Investments accounted for using equity method |
828,000
GBP
|
964,000
GBP
|
— |
| Miscellaneous non-current assets [abstract] | |||
| Non-current derivative financial assets |
5,716,000
GBP
|
5,932,000
GBP
|
— |
| Trade and other current receivables [abstract] | |||
| Trade and other current receivables |
31,894,000
GBP
|
34,589,000
GBP
|
— |
| Current prepayments and current accrued income including current contract assets [abstract] | |||
| Current accrued income including current contract assets [abstract] | |||
| Current contract assets |
22,027,000
GBP
|
16,257,000
GBP
|
— |
| Classes of current inventories [abstract] | |||
| Current inventories |
46,809,000
GBP
|
47,955,000
GBP
|
— |
| Classes of current inventories, alternative [abstract] | |||
| Cash and cash equivalents [abstract] | |||
| Cash and cash equivalents |
30,678,000
GBP
|
19,661,000
GBP
|
11,651,000
GBP
|
| Miscellaneous current assets [abstract] | |||
| Current derivative financial assets |
2,007,000
GBP
|
2,684,000
GBP
|
— |
| Classes of other provisions [abstract] | |||
| Other provisions [abstract] | |||
| Other non-current provisions |
274,000
GBP
|
246,000
GBP
|
— |
| Borrowings [abstract] | |||
| Non-current portion of non-current borrowings |
61,906,000
GBP
|
47,256,000
GBP
|
— |
| Current borrowings and current portion of non-current borrowings [abstract] | |||
| Current borrowings |
14,027,000
GBP
|
6,729,000
GBP
|
— |
| Non-current portion of non-current borrowings, by type [abstract] | |||
| Trade and other non-current payables [abstract] | |||
| Non-current accruals and non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current deferred income including non-current contract liabilities [abstract] | |||
| Non-current contract liabilities [abstract] | |||
| Non-current contract liabilities |
19,268,000
GBP
|
‒
GBP
|
— |
| Trade and other current payables [abstract] | |||
| Current accruals and current deferred income including current contract liabilities [abstract] | |||
| Current deferred income including current contract liabilities [abstract] | |||
| Current contract liabilities [abstract] | |||
| Current contract liabilities |
14,856,000
GBP
|
32,747,000
GBP
|
— |
| Trade and other current payables |
30,830,000
GBP
|
31,765,000
GBP
|
— |
| Miscellaneous non-current liabilities [abstract] | |||
| Non-current derivative financial liabilities |
277,000
GBP
|
‒
GBP
|
— |
| Miscellaneous current liabilities [abstract] | |||
| Current derivative financial liabilities |
251,000
GBP
|
2,383,000
GBP
|
— |
| Issued capital [abstract] | |||
| Issued capital |
751,000
GBP
|
769,000
GBP
|
— |
| Retained earnings [abstract] | |||
| Retained earnings |
123,714,000
GBP
|
119,055,000
GBP
|
— |
| Accumulated other comprehensive income [abstract] | |||
| Reserve of exchange differences on translation |
2,391,000
GBP
|
849,000
GBP
|
— |
| Reserve of cash flow hedges |
633,000
GBP
|
1,504,000
GBP
|
— |
| Miscellaneous equity [abstract] | |||
| Reserve of share-based payments |
‒
GBP
|
5,244,000
GBP
|
— |
| Net assets (liabilities) [abstract] | |||
| Assets |
284,228,000
GBP
|
262,833,000
GBP
|
— |
| Liabilities |
157,578,000
GBP
|
133,676,000
GBP
|
— |
| Assets (liabilities) |
126,650,000
GBP
|
129,157,000
GBP
|
— |
| Net current assets (liabilities) [abstract] | |||
| Current assets |
134,703,000
GBP
|
122,483,000
GBP
|
— |
| Current liabilities |
61,054,000
GBP
|
74,811,000
GBP
|
— |
| Assets less current liabilities [abstract] |