The period of option period to invest in the event of electing not to participate in the right.

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Exercise price per share or per unit of warrants or rights outstanding.

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Exercise price per unit in related party's investment option.

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Number of new stock issued during the period.

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Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Investment in entity that related party has option to make.

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Number of shares per unit.

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Number of shares per unit which related party has option to invest in.

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Number of warrants per unit.

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Number of warrants per unit which related party has option to invest in.

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The amount of cash inflow from the issuance of units which include shares and warrants.

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No definition available.

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Number of units issued during the period.

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The amounts payable resulting from related party transactions. [Refer: Total for all related parties [member]]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

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The gains (losses) excluding exchange differences, recognised in profit or loss, on the fair value measurement of liabilities. [Refer: At fair value [member]]

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The amount of interest expense on financial liabilities designated at fair value through profit or loss. [Refer: Interest expense; Financial liabilities at fair value through profit or loss, designated upon initial recognition or subsequently]

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The cash inflow from issuing shares.

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The amount of services received in related party transactions. [Refer: Total for all related parties [member]]

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Related party transactions - Transactions with Mudrick capital and Stephen Fitzpatrick (Details) $ / shares in Units, £ in Thousands, $ in Millions			1 Months Ended	6 Months Ended
	Jul. 10, 2025 USD ($) shares	Jan. 24, 2025 USD ($) $ / shares shares	Jul. 31, 2025 USD ($) shares	Jun. 30, 2025 GBP (£) shares	Jun. 30, 2024 GBP (£)	Jun. 30, 2025 USD ($) $ / shares	Jun. 30, 2025 GBP (£)
Disclosure of transactions between related parties [line items]
Proceeds from issue of shares \| £				£ 44,214
Underwritten public offering
Disclosure of transactions between related parties [line items]
Gross Proceeds \| $		$ 90.0
Number of shares issued		15,000,000
Proceeds from issue of shares \| £				44,203
Share transaction \| Underwritten public offering
Disclosure of transactions between related parties [line items]
Gross Proceeds \| $	$ 69.0
Number of shares issued	13,800,000
Proceeds from issue of shares \| $	$ 69.0
Tranche A Warrant
Disclosure of transactions between related parties [line items]
Exercise price per share \| $ / shares		$ 6
Tranche B Warrant
Disclosure of transactions between related parties [line items]
Exercise price per share \| $ / shares		$ 7.5
Mudrick
Disclosure of transactions between related parties [line items]
Gross Proceeds \| $		$ 25.0
Issuance of units		4,166,666
Number of shares per unit		1
Mudrick \| Share transaction
Disclosure of transactions between related parties [line items]
Number of shares issued			2,500,000
Proceeds from issue of shares \| $			$ 12.5
Mudrick \| Tranche A Warrant
Disclosure of transactions between related parties [line items]
Number of warrant per unit		0.5
Warrant term (in years)		5 years
Exercise price per share \| $ / shares		$ 6
Mudrick \| Tranche B Warrant
Disclosure of transactions between related parties [line items]
Warrant term (in years)		5 years
Exercise price per share \| $ / shares		$ 7.5
Mudrick \| Convertible loan notes
Disclosure of transactions between related parties [line items]
Fair value movements \| £				258,719
In-kind interest paid and accrued \| £				5,782
Imagination Industries Investments Ltd
Disclosure of transactions between related parties [line items]
Services received, related party transaction \| £				£ 151	£ 21
Amount outstanding \| £					£ 21		£ 37
Stephen Fitzpatrick
Disclosure of transactions between related parties [line items]
Capital commitment option period						12 months	12 months
Number of shares per unit which related party has option to invest in				1
Stephen Fitzpatrick \| Underwritten public offering
Disclosure of transactions between related parties [line items]
Exercise price per unit in related party's investment option \| $ / shares						$ 6
Stephen Fitzpatrick \| Tranche A Warrant
Disclosure of transactions between related parties [line items]
Number of warrants per unit which related party has option to invest in				0.5
Stephen Fitzpatrick \| Tranche B Warrant
Disclosure of transactions between related parties [line items]
Number of warrants per unit which related party has option to invest in				0.5
Maximum \| Stephen Fitzpatrick
Disclosure of transactions between related parties [line items]
Investment in entity that related party has option to make \| $						$ 25.0