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Reclamation and Environmental - Additional Information (Details) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2013	Jun. 30, 2014
Site Contingency [Line Items]
Commutation account	$ 2,499,396		$ 2,626,538
Sleeper Gold Mine
Site Contingency [Line Items]
Maximum reclamation costs covered by insurance policy	25,000,000
Prepaid insurance	73,561		122,605
Commutation account	2,499,396		$ 2,626,538
Undiscounted estimate of reclamation costs	$ 3,915,626
Credit adjusted risk free rate	9.76%	9.76%
Inflation rate	2.00%	2.00%

X

- Definition

Estimated amount of a reclamation cost that is associated with a legal obligation for the closure and reclamation of a mine including the removal of buildings, equipment, machinery and other physical remnants of mining, closure of tailings impoundments, leach pads and other mine features, and contouring, covering and re-vegetation of waste rock piles and other disturbed areas, before the discount of interest rate and inflation rate assumptions.

+ References

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- Definition

Inflation rate assumption used in valuing an estimate of reclamation costs.

+ References

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- Definition

Insurance policy, maximum reclamation costs covered.

+ References

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- Definition

Carrying amount as of the balance sheet date of unamortized costs of insurance coverage, which will be charged against earnings ratably over the period in which contractually agreed upon coverage's will be in effect.

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- Definition

Noncurrent bond posted used to reimburse reclamation costs and indemnity claims paid by the Company.

+ References

No definition available.

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- Definition

Risk-free interest rate assumption used in valuing an instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 820



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (e)



-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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