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Commitments and Contingencies Claim Rentals (Details)
3 Months Ended
Sep. 30, 2016
USD ($)
Tetlin Lease [Member]  
Claim Rentals [Line Items]  
Contractual Annual Exploration Costs $ 350,000
Gold Properties [Member]  
Claim Rentals [Line Items]  
Annual claim rentals $ 93,485
Native Village of Tetlin Land [Member]  
Claim Rentals [Line Items]  
Initial and Renewal Terms of Leases and Concessions on Undeveloped Acreage 10 years