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Income Taxes (Tables) | 12 Months Ended
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Jun. 30, 2018
Income Tax Disclosure [Abstract] |
Schedule of Company's Deferred Tax Asset (Liability) | The tax effects of the significant components within the Company’s deferred tax asset (liability) at June 30, 2018 and 2017 are as follows:
United States |  | 2018 |  |  | 2017 |
Mineral properties |  | $ | 166,476 |  |  | $ | (248,008 | )
Asset retirement obligation |  |  | 225,236 |  |  |  | 428,572 |
Stock options |  |  | 264,898 |  |  |  | 404,628 |
Net operating losses |  |  | 8,042,088 |  |  |  | 9,826,149 |
|  | $ | 8,698,698 |  |  | $ | 10,411,341 |
Valuation allowance |  |  | (8,698,698 | ) |  |  | (10,411,341 | )
Net deferred tax asset |  | $ | — |  |  |  | — |
Schedule of Income Tax Recovery Differs from Amounts Computed by Applying Statutory Tax to Pre-tax Losses | The income tax recovery differs from the amounts computed by applying statutory tax to pre-tax losses as a result of the following:
|  | 2018 |  |  | 2017 |
Income (Loss) before taxes |  | $ | (6,068,154 | ) |  | $ | (7,555,020 | )
US Statutory tax rate |  |  | 21.00 | % |  |  | 34.00 | %
Expected income tax (recovery) |  |  | (1,274,312 | ) |  |  | (2,568,707 | )
Non-deductible items |  |  | 78 |  |  |  | 171 |
Change in estimates |  |  | (1,609,037 | ) |  |  | (1,866,223 | )
Change in tax rates |  |  | 4,596,096 |  |  |  | — |
Change in valuation allowance |  |  | (1,712,825 | ) |  |  | 1,219,341 |
Total income taxes (recovery) |  | $ | — |  |  | $ | (3,215,418 | )
Current tax expense (recovery) |  |  | — |  |  |  | — |
Deferred tax expense (recovery) |  |  | — |  |  |  | (3,215,418 | )
|  | $ | — |  |  | $ | — |

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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