Statement Of Financial Position [Abstract]
| Concept |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2022-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2021-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
As at 2020-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | |||||||||||||||||||||
| Assets [abstract] | |||||||||||||||||||||
| Non-current assets [abstract] | |||||||||||||||||||||
| Property, plant and equipment | — | — | — | — | — |
14,867,000
GBP
|
— | — | — | — |
10,287,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Right-of-use assets | — | — | — | — | — |
3,166,000
GBP
|
— | — | — | — |
3,857,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Goodwill | — | — | — | — | — |
18,765,000
GBP
|
— | — | — | — |
3,121,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill | — | — | — | — | — |
5,993,000
GBP
|
— | — | — | — |
3,288,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Deferred tax assets | — | — | — | — | — |
4,282,000
GBP
|
— | — | — | — |
4,020,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Other non-current financial assets | — | — | — | — | — |
1,343,000
GBP
|
— | — | — | — |
1,225,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Non-current assets | — | — | — | — | — |
48,416,000
GBP
|
— | — | — | — |
25,798,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | |||||||||||||||||||||
| Trade and other current receivables | — | — | — | — | — |
38,358,000
GBP
|
— | — | — | — |
36,609,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents | — | — | — | — | — |
76,609,000
GBP
|
— | — | — | — |
62,896,000
GBP
|
— | — | — | — |
40,785,000
GBP
|
— | — | — | — | — |
| Current assets | — | — | — | — | — |
158,806,000
GBP
|
— | — | — | — |
138,664,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Assets | — | — | — | — | — |
207,222,000
GBP
|
— | — | — | — |
164,462,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | |||||||||||||||||||||
| Equity [abstract] | |||||||||||||||||||||
| Issued capital | — | — | — | — | — |
619,000
GBP
|
— | — | — | — |
614,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Retained earnings | — | — | — | — | — |
81,668,000
GBP
|
— | — | — | — |
71,989,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Share premium | — | — | — | — | — |
6,433,000
GBP
|
— | — | — | — |
5,737,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Equity |
3,548,000
GBP
|
619,000
GBP
|
251,000
GBP
|
6,433,000
GBP
|
81,668,000
GBP
|
107,690,000
GBP
|
15,171,000
GBP
|
9,083,000
GBP
|
662,000
GBP
|
71,989,000
GBP
|
87,608,000
GBP
|
614,000
GBP
|
5,737,000
GBP
|
477,000
GBP
|
5,610,000
GBP
|
59,154,000
GBP
|
655,000
GBP
|
664,000
GBP
|
5,446,000
GBP
|
610,000
GBP
|
46,169,000
GBP
|
| Liabilities [abstract] | |||||||||||||||||||||
| Non-current liabilities [abstract] | |||||||||||||||||||||
| Non-current provisions [abstract] | |||||||||||||||||||||
| Non-current provisions | — | — | — | — | — |
1,258,000
GBP
|
— | — | — | — |
1,735,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Non-current liabilities | — | — | — | — | — |
3,526,000
GBP
|
— | — | — | — |
4,129,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | |||||||||||||||||||||
| Current provisions [abstract] | |||||||||||||||||||||
| Current provisions | — | — | — | — | — |
872,000
GBP
|
— | — | — | — |
–
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Trade and other current payables | — | — | — | — | — |
49,199,000
GBP
|
— | — | — | — |
35,976,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Current liabilities | — | — | — | — | — |
96,006,000
GBP
|
— | — | — | — |
72,725,000
GBP
|
— | — | — | — | — | — | — | — | — | — |
| Liabilities | — | — | — | — | — |
99,532,000
GBP
|
— | — | — | — |
76,854,000
GBP
|
— | — | — | — | — | — | — | — | — | — |