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DISCONTINUED OPERATIONS - Business segments included in discontinued operations (Details) - Uranium And Lithium Operations $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |
Mineral property expenses | $ (2,606)
General and administrative expenses | (1,665)
Accretion of asset retirement obligations | (201)
Depreciation and amortization | (38)
Impairment of uranium properties | (5,200)
Other income | 48
Net Loss from Discontinued Operations | $ (9,662)

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