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GEOGRAPHIC AND SEGMENT INFORMATION - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019 | Dec. 31, 2019
Long-term assets by reportable segments |  |  |  |  |
Net Property, Plant and Equipment | $ 8,996 |  | $ 8,996 |  | $ 8,995
Restricted cash | 807 |  | 807 |  | 797
Operating lease right-of-use assets | 383 |  | 383 |  | 470
Total long-term assets | 10,186 |  | 10,186 |  | 10,262
Total long-term assets | 10,186 |  | 10,186 |  | 10,262
Statement of Operations, Loss before taxes |  |  |  |  |
Mineral property expenses | 12 | $ 12 | 18 | $ 77 |
Product development expenses | 1,641 | 19 | 1,942 | 51 |
General and administrative expenses | 1,536 | 1,003 | 4,106 | 3,583 |
Arbitration expenses | 171 | 146 | 868 | 631 |
Accretion of asset retirement costs |  |  | 170 | 353 | 390
Depreciation and amortization | (19) | 3 | 5 | 5 |
Impairment of uranium properties |  |  | 5,200 |  |
Total operating expenses | 3,341 | 1,183 | 6,939 | 4,347 |
Loss from operations | (3,341) | (1,183) | (6,939) | (4,347) |
Other income (expense) | (21) | 13 | 7 | (384) |
Net Loss from Continuing Operations | (3,362) | (1,170) | (6,932) | (4,731) |
Corporate |  |  |  |  |
Long-term assets by reportable segments |  |  |  |  |
Net Property, Plant and Equipment | 24 |  | 24 |  | 23
Restricted cash | 797 |  | 797 |  | 787
Operating lease right-of-use assets | 383 |  | 383 |  | 470
Total long-term assets | 1,204 |  | 1,204 |  | 1,280
Total long-term assets | 1,204 |  | 1,204 |  | 1,280
Statement of Operations, Loss before taxes |  |  |  |  |
General and administrative expenses | 1,347 | 936 | 3,630 | 3,300 |
Arbitration expenses | 171 | 146 | 868 | 631 |
Depreciation and amortization | (19) | 3 | 5 | 5 |
Total operating expenses | 1,499 | 1,085 | 4,503 | 3,936 |
Loss from operations | (1,499) | (1,085) | (4,503) | (3,936) |
Other income (expense) | (21) | 13 | 7 | (384) |
Net Loss from Continuing Operations | (1,520) | (1,072) | (4,496) | (4,320) |
Graphite |  |  |  |  |
Long-term assets by reportable segments |  |  |  |  |
Net Property, Plant and Equipment | 8,972 |  | 8,972 |  | 8,972
Restricted cash | 10 |  | 10 |  | 10
Total long-term assets | 8,982 |  | 8,982 |  | 8,982
Total long-term assets | 8,982 |  | 8,982 |  | $ 8,982
Statement of Operations, Loss before taxes |  |  |  |  |
Mineral property expenses | 12 | 12 | 18 | 77 |
Product development expenses | 1,641 | 19 | 1,942 | 51 |
General and administrative expenses | 189 | 67 | 476 | 283 |
Total operating expenses | 1,842 | 98 | 2,436 | 411 |
Loss from operations | (1,842) | (98) | (2,436) | (411) |
Net Loss from Continuing Operations | $ (1,842) | $ (98) | $ (2,436) | $ (411) |

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