Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands |
Jun. 30, 2016 |
Jun. 30, 2015 |
|---|---|---|
| Deferred tax liabilities | ||
| Land, buildings and equipment | $ 0 | $ 0 |
| Foreign investments | (10,851) | (7,451) |
| Other items | (72) | (128) |
| Total deferred tax liabilities | (10,923) | (7,579) |
| Deferred tax assets | ||
| Acquisition and development costs | (21) | (5) |
| Asset retirement obligations | 0 | 0 |
| Net operating losses, capital losses, and foreign tax credit carry forwards | 21,408 | 18,521 |
| United Kingdom exploration costs and net operating losses | 3,109 | 3,639 |
| Investments | 111 | 100 |
| Stock option compensation | 1,810 | 2,184 |
| Australian capitalized legal costs | 112 | 116 |
| Other items | 286 | 141 |
| Total deferred tax asset | 26,815 | 24,696 |
| Valuation allowance | (15,892) | (17,117) |
| Net long term deferred tax asset | $ 0 | $ 0 |
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- Definition Deferred Tax Asset, Foreign Exploration Costs and Operating Loss Carryforwards No definition available.
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- Definition Deferred Tax Assets, Acquisition and Development Costs No definition available.
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- Definition Deferred Tax Assets, Operating Loss, Capital Loss and Foreign Tax Credit Carry Forwards No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from investments (excludes investments in subsidiaries and equity method investments). No definition available.
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- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from the estimated loss from legal settlements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from investments (excludes investments in subsidiaries and equity method investments). No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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