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Costs Incurred (Tables) | 3 Months Ended
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Sep. 30, 2016
Mineral Industries Disclosures [Abstract] |
Costs to Acquire and Explore the Properties | Costs to acquire and explore our Tetlin Lease and other properties were as follows:
|  | Three Months Ended September 30,
|  | 2016 |  | 2015
Exploration costs, claim rentals, and minimum royalties |  | $ | — |  |  | $ | 14,425 |
Total costs incurred |  | $ | — |  |  | $ | 14,425 |

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- Definition Tabular disclosure of the both capitalized costs incurred and costs expensed during the period of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs for mining properties. [Table Text Block] + References No definition available. + Details
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