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Exploration and Evaluation Expenditures - Exploration and option agreement (Details)
 9 Months Ended
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