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Exploration and Evaluation Expenditures - Exploration and option agreement (Details) |  |  |  |  |  |  |  | 9 Months Ended
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Apr. 23, 2023 USD ($) shares | Apr. 23, 2022 USD ($) shares | Apr. 23, 2021 USD ($) shares | Apr. 23, 2020 USD ($) shares | Apr. 23, 2019 USD ($) shares | Oct. 23, 2018 USD ($) shares | Apr. 23, 2018 CAD ($) shares | Apr. 23, 2018 USD ($) a shares | Mar. 31, 2023 CAD ($) | Mar. 31, 2022 CAD ($)
Exploration and Evaluation Expenditures |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  | $ 15,806,296 | $ 2,069,120
Property in Bristol Dry Lake | TETRA Technologies, Inc. |  |  |  |  |  |  |  |  |  |
Exploration and Evaluation Expenditures |  |  |  |  |  |  |  |  |  |
Area of lease property (Acre) | a |  |  |  |  |  |  |  | 12,100 |  |
Property in the adjacent Cadiz Dry Lake, Mojave Desert, CA | TETRA Technologies, Inc. |  |  |  |  |  |  |  |  |  |
Exploration and Evaluation Expenditures |  |  |  |  |  |  |  |  |  |
Area of lease property (Acre) | a |  |  |  |  |  |  |  | 11,840 |  |
Property in exploration and option agreement | TETRA Technologies, Inc. |  |  |  |  |  |  |  |  |  |
Exploration and Evaluation Expenditures |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets | $ 200,000 | $ 200,000 | $ 200,000 | $ 200,000 | $ 200,000 | $ 100,000 | $ 135,453 | $ 100,000 |  |
Amount required to be paid under terms of agreement |  |  |  |  |  |  |  | $ 2,700,000 |  |
Common shares issuable under terms of agreement (in shares) | shares |  |  |  |  |  |  |  | 3,400,000 |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares | 400,000 | 400,000 | 400,000 | 400,000 | 400,000 | 200,000 | 200,000 | 200,000 |  |
Amount payable upon completion of pre-feasibility study |  |  |  |  |  |  |  | $ 500,000 |  |
Amount payable upon completion of feasibility study |  |  |  |  |  |  |  | $ 1,000,000 |  |
Shares issuable upon completion of pre-feasibility study (in shares) | shares | 1,000,000 |  |  |  |  |  |  |  |  |

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- Definition The amount of liabilities arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2021-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2021-en-r&anchor=para_24_b&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The cash outflow for the purchase of exploration and evaluation assets. [Refer: Exploration and evaluation assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
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