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v3.20.2

DISCONTINUED OPERATIONS - Carrying amounts of major classes of assets - (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019 | Sep. 30, 2019
--- | --- | --- | ---
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract] |  |  |
Restricted Cash | $ 3,000 |  | $ 3,000
Current Assets Held for Sale | 9,306 | $ 151 |
Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract] |  |  |
Assets Held for Sale, non-current |  | 14,356 |
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract] |  |  |
Current Liabilities Held for Sale | 7,758 | 1,701 |
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract] |  |  |
Liabilities Held for Sale, non-current |  | 5,914 |
Uranium And Lithium Operations | Discontinued Operations, Held-for-sale or Disposed of by Sale [Member] |  |  |
Disposal Group, Including Discontinued Operation, Assets, Current [Abstract] |  |  |
Restricted Cash | 3,000 |  |
Prepaid and other current assets | 89 | 151 |
Net property, plant and equipment | 6,207 |  |
Operating lease right-of-use assets | 10 |  |
Current Assets Held for Sale | 9,306 | 151 |
Disposal Group, Including Discontinued Operation, Assets, Noncurrent [Abstract] |  |  |
Net property, plant and equipment |  | 11,342 |
Operating lease right-of-use assets |  | 14 |
Restricted cash |  | 3,000 |
Assets Held for Sale, non-current |  | 14,356 |
Total Assets Held for Sale | 9,306 | 14,507 |
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract] |  |  |
Accounts payable | 140 | 25 |
Accrued liabilities | 808 | 776 |
Asset retirement obligations - current | 5,969 | 894 |
Operating lease liability - current | 10 | 6 |
Notes payable - current | 331 |  |
Other current liabilities | 500 |  |
Current Liabilities Held for Sale | 7,758 | 1,701 |
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent [Abstract] |  |  |
Asset retirement obligations, net of current |  | 5,406 |
Operating lease liability, net of current |  | 8 |
Other long-term liabilities |  | 500 |
Liabilities Held for Sale, non-current |  | 5,914 |
Total Liabilities Held for Sale | $ 7,758 | $ 7,615 |

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- Definition Amount classified as asset retirement obligations, attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount classified as asset retirement obligations, attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount classified as notes payable, attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount classified as operating lease liabilities, attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount classified as operating lease liabilities, attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount classified as operating lease right of use assets , attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount classified as operating lease right of use assets , attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount classified as restricted cash attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount classified as restricted cash attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. + References No definition available. + Details
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Namespace Prefix: | wwr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |