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DISCONTINUED OPERATIONS - Business segments included in discontinued operations (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Gain on sale of fixed assets | $ (2,665) | $ 729
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING | 8,799,190 | 1,961,086
Uranium And Lithium Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Mineral property expenses | $ (2,606) | $ (2,416)
General and administrative expenses | (1,665) | (1,612)
Accretion of asset retirement obligations | (201) | (390)
Depreciation and amortization | (38) | (67)
Impairment of uranium properties | (5,200) | (143)
Interest income | 10 | 65
Gain on sale of fixed assets | 21 | 2
Other income (expense) | 17 |
Net Loss from Discontinued Operations | $ (9,662) | $ (4,561)
LOSS PER SHARE FROM DISCONTINUED OPERATIONS | $ (1.10) | $ (2.33)
WEIGHTED AVERAGE NUMBER OF SHARES OUTSTANDING | 8,799,190 | 1,961,086
Discontinued Operations, Held-for-sale or Disposed of by Sale | Uranium And Lithium Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Accretion of asset retirement obligations | $ (201) | $ (390)
Depreciation and amortization | (38) | (67)
Discontinued Operations, Held-for-sale | Uranium And Lithium Operations |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |
Impairment of uranium properties | $ (5,200) | $ (143)

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