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Note 4 - Winnemucca Mountain Property (Details Textual) - USD ($)
Aug. 31, 2018
Jul. 31, 2018
Jul. 23, 2018
Jun. 01, 2023
Jul. 31, 2021
Mar. 25, 2019
Sep. 14, 2012
Promissory Note [Member] | Golden Sands Exploration, Inc [Member] | Settlement and Promissory Note Agreement [Member]              
Debt Instrument, Interest Rate, Stated Percentage       6.00%      
Winnemucca Mountain Property [Member]              
Business Acquisition, Percentage of Voting Interests Acquired           80.00% 80.00%
Payments to Acquire Businesses, Gross $ 25,000 $ 25,000 $ 25,000        
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable     $ 3,000,000        
Winnemucca Mountain Property [Member] | New Option Agreement [Member]              
Other Commitment       $ 85,000 $ 285,453 $ 381,770  
Winnemucca Mountain Property [Member] | New Option Agreement [Member] | Cash Payments [member]              
Other Commitment           181,770  
Winnemucca Mountain Property [Member] | New Option Agreement [Member] | Firm Commitments [Member]              
Other Commitment           $ 200,000