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DISCONTINUED OPERATIONS - Cash flow information (Details) - Uranium And Lithium Operations - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Depreciation and amortization | $ 30 | $ 36
Capital Expenditures |  | (101)
Accretion of asset retirement obligations | 32 | 170
Impairment of uranium properties | $ 5,200 | $ 5,200

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