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Exploration and Evaluation Expenditures - Arkansas Properties (Details)
 9 Months Ended
Dec. 29, 2020
USD ($)
Dec. 29, 2019
USD ($)
Dec. 29, 2018
USD ($)
Jan. 28, 2018
USD ($)
Dec. 29, 2017
USD ($)
Jul. 26, 2017
CAD ($)
a
Jul. 26, 2017
USD ($)
a
Mar. 31, 2023
CAD ($)
Mar. 31, 2022
CAD ($)
Exploration and Evaluation Expenditures                  
Purchase of exploration and evaluation assets               $ 15,806,296 $ 2,069,120
Property, Columbian and Lafayette Counties, Arkansas | Vendor                  
Exploration and Evaluation Expenditures                  
Area of lease property (Acre) | a           33,000 33,000    
Purchase of exploration and evaluation assets $ 750,000 $ 700,000 $ 600,000 $ 500,000          
Additional annual payment         $ 1,000,000        
Period after agreement to begin annual payment         48 months        
Net smelter return royalty (as a percent)         2.50%        
Minimum royalty         $ 1,000,000 $ 614,150 $ 500,000