Income Taxes - deferred tax components (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Deferred Income Tax Assets And Liabilities [Line Items] | |||
| Deferred tax assets | $ 9,617 | $ 15,344 | $ 8,386 |
| Net operating loss carry forwards | 30,250 | 41,634 | 41,647 |
| Less: valuation allowance | (39,867) | (56,978) | (50,033) |
| Deferred Tax Assets, Total | |||
| Valuation Allowance [Abstract] | |||
| Recovery of future income taxes | 3,345 | ||
| Current income tax expense | 17 | (30) | |
| Effect of income tax reconciliation before recovery of income taxes | $ 17 | 3,315 | |
| Pathfinder Mines Corporation | |||
| Valuation Allowance [Abstract] | |||
| Recovery of future income taxes | $ 3,345 | ||
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- Definition Deferred Income Tax Assets And Liabilities [Line Items] No definition available.
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax exempt income, equity in earnings (loss) of an unconsolidated subsidiary, minority noncontrolling interest income (loss), tax holiday, disposition of a business, disposition of an asset, repatriation of foreign earnings, repatriation of foreign earnings jobs creation act of 2004, increase (decrease) in enacted tax rate, prior year income taxes, increase (decrease) in deferred tax asset valuation allowance before recovery of future income taxes. No definition available.
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- Definition Amount of income tax reconciliation of recovery of future income taxes. No definition available.
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- Definition Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations. 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 after 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 operating loss carryforwards. 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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- Details
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