Formation of Joint Venture Company (Notes)	9 Months Ended
Mar. 31, 2015
Formation of Joint Venture Company [Abstract]
Formation of Joint Venture Company [Table Text Block]	Formation of Joint Venture Company On January 8, 2015, the Company and Royal Gold, through their wholly-owned subsidiaries, consummated the Transactions contemplated under the Master Agreement, including the formation of a joint venture to advance exploration and development of the Company’s Tetlin Properties, for gold and associated minerals prospects. In connection with the Closing of the Transactions, the Company formed the Joint Venture Company. The Company contributed to the Joint Venture Company its Tetlin properties near Tok, Alaska, together with other property (the “Contributed Assets”) at an agreed value of $45.7 million (the “Contributed Assets Value”). At the Closing, the Company and Royal Gold, through their wholly-owned subsidiaries, entered into a Limited Liability Company Agreement for the Joint Venture Company (the “Joint Venture Company LLC Agreement”). As a condition to the Closing, the Company and the Tetlin Village Council entered into a Stability Agreement dated October 2, 2014, pursuant to which the Company and the Tetlin Village Council, among other things, acknowledged the continued validity of the Tetlin Lease and all its terms notwithstanding any future change in the status of the Tetlin Village Council or the property subject to the Tetlin Lease. At Closing, Royal Gold, as an initial contribution to the Joint Venture Company, contributed $5 million in restricted cash (the “Royal Gold Initial Contribution”) which is classified as a deferred option on our consolidated balance sheet. The Royal Gold Initial Contribution does not entitle Royal Gold to a percentage interest in the Joint Venture Company. Therefore, at Closing, Royal Gold’s percentage interest in the Joint Venture Company equaled 0% and the Company’s percentage interest in the Joint Venture Company equaled 100%. In addition, as part of the Closing, Royal Gold paid the Company $750,000 which was utilized to partially reimburse the Company for costs and expenses incurred in the Transactions and is included in revenue on our consolidated statements of operations. The Joint Venture Company's LLC Agreement provides Royal Gold with the right, but not the obligation, to earn a percentage interest in the Joint Venture Company (up to a maximum of 40%) by making additional contributions of capital to the Joint Venture Company in an aggregate amount equal to $30 million (inclusive of the Royal Gold Initial Contribution of $5 million) during the period beginning on the Closing and ending on October 31, 2018. If Royal Gold funds its full $30 million investment by October 31, 2018, it will receive a 40% interest in the Joint Venture Company, and the Company will retain a 60% interest in the Joint Venture Company. The proceeds of Royal Gold’s contributions to the Joint Venture Company (including the Royal Gold Initial Contribution) will be used by the Joint Venture Company to fund further exploration activities on the Tetlin Properties included in the Contributed Assets. Other than the Royal Gold's Initial Contribution, Royal Gold is not under any obligation to make capital contributions, to the Joint Venture Company by October 31, 2018 or thereafter. If Royal Gold does not make any additional capital contributions to the Joint Venture Company by October 31, 2018, and assuming there are no other new investors in the Joint Venture Company, the Company’s percentage interest in the Joint Venture Company would continue to be 100% and Royal Gold will be deemed to have resigned as a member of the Joint Venture Company effective as of October 31, 2018. Both the Company and Royal Gold will have the right to transfer each of their respective percentage interests in the Joint Venture Company to a third party, subject to certain terms and conditions set forth in the Joint Venture Company's LLC Agreement. If either member intends to transfer all or part of its percentage interest to a bona fide third party, the other member will have the right to require the transferring member to include in the intended transfer the other member’s proportionate share of its percentage interests at the same purchase price and terms and conditions. Once Royal Gold has earned a 40% interest in the Joint Venture Company, it will have the additional right to require the Company to sell up to 20% of the Company’s interest in the Joint Venture Company in a sale of Royal Gold’s entire 40% interest to a bona fide third party purchaser. If Royal Gold exercises this right, the Company will be obligated to sell the relevant portion of its percentage interest to a bona fide third party on the same terms and conditions as the interest being sold by Royal Gold. After October 31, 2018, or such earlier time as Royal Gold has earned a 40% interest in the Joint Venture Company, the members will contribute funds to approved programs and budgets in proportion to their respective percentage interests in the Joint Venture Company. If a member elects not to contribute to an approved program and budget or elects to contribute less than its proportionate interest, its percentage interest will be recalculated by dividing (i) the sum of (a) the value of its initial contribution plus (b) the total of all of its capital contributions plus (c) the amount of the capital contribution it elects to fund, by (ii) the sum of (a), (b) and (c) above for both members multiplied by 100.

Formation of Joint Venture Company

On January 8, 2015, the Company and Royal Gold, through their wholly-owned subsidiaries, consummated the Transactions contemplated under the Master Agreement, including the formation of a joint venture to advance exploration and development of the Company’s Tetlin Properties, for gold and associated minerals prospects.

In connection with the Closing of the Transactions, the Company formed the Joint Venture Company. The Company contributed to the Joint Venture Company its Tetlin properties near Tok, Alaska, together with other property (the “Contributed Assets”) at an agreed value of $45.7 million (the “Contributed Assets Value”). At the Closing, the Company and Royal Gold, through their wholly-owned subsidiaries, entered into a Limited Liability Company Agreement for the Joint Venture Company (the “Joint Venture Company LLC Agreement”).

As a condition to the Closing, the Company and the Tetlin Village Council entered into a Stability Agreement dated October 2, 2014, pursuant to which the Company and the Tetlin Village Council, among other things, acknowledged the continued validity of the Tetlin Lease and all its terms notwithstanding any future change in the status of the Tetlin Village Council or the property subject to the Tetlin Lease.

At Closing, Royal Gold, as an initial contribution to the Joint Venture Company, contributed $5 million in restricted cash (the “Royal Gold Initial Contribution”) which is classified as a deferred option on our consolidated balance sheet. The Royal Gold Initial Contribution does not entitle Royal Gold to a percentage interest in the Joint Venture Company. Therefore, at Closing, Royal Gold’s percentage interest in the Joint Venture Company equaled 0% and the Company’s percentage interest in the Joint Venture Company equaled 100%. In addition, as part of the Closing, Royal Gold paid the Company $750,000 which was utilized to partially reimburse the Company for costs and expenses incurred in the Transactions and is included in revenue on our consolidated statements of operations.

The Joint Venture Company's LLC Agreement provides Royal Gold with the right, but not the obligation, to earn a percentage interest in the Joint Venture Company (up to a maximum of 40%) by making additional contributions of capital to the Joint Venture Company in an aggregate amount equal to $30 million (inclusive of the Royal Gold Initial Contribution of $5 million) during the period beginning on the Closing and ending on October 31, 2018. If Royal Gold funds its full $30 million investment by October 31, 2018, it will receive a 40% interest in the Joint Venture Company, and the Company will retain a 60% interest in the Joint Venture Company.

The proceeds of Royal Gold’s contributions to the Joint Venture Company (including the Royal Gold Initial Contribution) will be used by the Joint Venture Company to fund further exploration activities on the Tetlin Properties included in the Contributed Assets.

Other than the Royal Gold's Initial Contribution, Royal Gold is not under any obligation to make capital contributions, to the Joint Venture Company by October 31, 2018 or thereafter. If Royal Gold does not make any additional capital contributions to the Joint Venture Company by October 31, 2018, and assuming there are no other new investors in the Joint Venture Company, the Company’s percentage interest in the Joint Venture Company would continue to be 100% and Royal Gold will be deemed to have resigned as a member of the Joint Venture Company effective as of October 31, 2018.

Both the Company and Royal Gold will have the right to transfer each of their respective percentage interests in the Joint Venture Company to a third party, subject to certain terms and conditions set forth in the Joint Venture Company's LLC Agreement. If either member intends to transfer all or part of its percentage interest to a bona fide third party, the other member will have the right to require the transferring member to include in the intended transfer the other member’s proportionate share of its percentage interests at the same purchase price and terms and conditions. Once Royal Gold has earned a 40% interest in the Joint Venture Company, it will have the additional right to require the Company to sell up to 20% of the Company’s interest in the Joint Venture Company in a sale of Royal Gold’s entire 40% interest to a bona fide third party purchaser. If Royal Gold exercises this right, the Company will be obligated to sell the relevant portion of its percentage interest to a bona fide third party on the same terms and conditions as the interest being sold by Royal Gold.

After October 31, 2018, or such earlier time as Royal Gold has earned a 40% interest in the Joint Venture Company, the members will contribute funds to approved programs and budgets in proportion to their respective percentage interests in the Joint Venture Company. If a member elects not to contribute to an approved program and budget or elects to contribute less than its proportionate interest, its percentage interest will be recalculated by dividing (i) the sum of (a) the value of its initial contribution plus (b) the total of all of its capital contributions plus (c) the amount of the capital contribution it elects to fund, by (ii) the sum of (a), (b) and (c) above for both members multiplied by 100.