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Mineral Rights and Properties, Net - Narrative (Details) - USD ($)
6 Months Ended
Sep. 30, 2023
Sep. 30, 2021
Nov. 26, 2020
Jul. 09, 2020
Jun. 04, 2020
May 21, 2020
May 05, 2020
Feb. 25, 2020
Dec. 23, 2019
Jun. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Percentage of royalty obligations, majority are less than                   3.00%
Mining exploration term             5 years      
Mining development term             15 years      
Monthly lease fee             $ 250      
Increased monthly lease fee             $ 1,000      
Minimum payments under commitment                 $ 20,000,000  
Tonogold Agreement | Como Project Claims                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Purchase price               $ 100,000    
Percentage of royalty obligations, majority are less than               2.00%    
Lease Purchase Option, New Daney                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Claims purchase price           $ 100,000        
Mineral rights, royalty percentage           3.00%        
Payments to acquire mineral rights         $ 1,000 $ 10,000        
Mineral rights, additional monthly payments           $ 1,000        
Hercules Gold USA LLC                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Option to purchase royalties per patented or unpatented claim               $ 750    
Forecast | Lease Purchase Option, New Daney                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Payments to acquire mineral rights     $ 85,000              
Forecast | Amended Lease, Renegade Mineral Holdings                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Minimum payments under commitment $ 500,000 $ 250,000                
Subsequent Event | Amended Lease, Renegade Mineral Holdings                    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]                    
Mining exploration term       10 years            
Mining development term       10 years            
Increased monthly lease fee       $ 3,000