Reporting entity and going concern - Schedule of subsidiary (Detail) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Disclosure of subsidiaries [line items] | |||
| Country of incorporation | Brazil | Brazil | Brazil |
| Potassio do Brasil Ltda [Member] | |||
| Disclosure of subsidiaries [line items] | |||
| Ownership percentage | 100.00% | 100.00% | 100.00% |
| X | ||||||||||
- Definition The country in which a subsidiary of the entity is incorporated. [Refer: Total for all subsidiaries [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition 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. No definition available.
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| X | ||||||||||
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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