Reconciliation of loss after income tax to net cash used in operating activities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Dec. 31, 2025	Jun. 30, 2025
Reconciliation of loss after income tax to net cash used in operating activities [Abstract]
Loss after income tax expense for the year	$ (4,070)	$ (9,554)
Adjustments for [Abstract]
Depreciation	177	277
Exploration expenditure written off	0	37
Share-based payments	1,102	3,164
Net foreign exchange differences - unrealised	(19)	(45)
Interest income	(308)	(681)
Interest expense	8	26
Interest paid	0	(17)
Change in operating assets and liabilities [Abstract]
Decrease/(increase) in receivables	(409)	127
Increase/(decrease) in provision for employee benefits	(158)	34
Adjustments for increase (decrease) in trade accounts payable	608	(173)
Net cash used in operating activities	$ (3,069)	$ (6,805)

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Adjustments for depreciation expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Classes of financial instruments [domain]]

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