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Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Statement [Abstract] |  |  |
Revenues, Uranium Concentrates | $ 0 | $ 66 | $ 30,789
Revenues, Vanadium Concentrates | 0 | 2,237 | 0
Revenues, Alternate Feed Materials Processing and Other | 1,658 | 3,562 | 932
Revenues | 1,658 | 5,865 | 31,721
Cost of Revenue, Uranium Concentrates | 0 | 63 | 14,752
Cost of Revenue, Applicable To Vanadium Concentrates | 0 | 1,805 | 0
Cost of Revenue, Alternate Feed Materials and Other | 0 | 2,079 | 0
Uranium concentrates | 0 | 3,947 | 14,752
Impairment of inventories | 1,644 | 14,351 | 4,579
Development, Permitting And Land Holding | 4,333 | 9,180 | 9,912
Standby costs | 4,015 | 2,584 | 5,112
Accretion of asset retirement obligation | 1,911 | 1,931 | 1,835
Selling costs | 38 | 190 | 183
Intangible asset amortization | 0 | 0 | 2,502
General and administration | 14,344 | 14,263 | 14,158
Total operating loss | (24,627) | (40,581) | (21,312)
Interest expense | (952) | (1,491) | (1,722)
Other Nonoperating Income (Expense) | (2,293) | 3,978 | (2,328)
Net loss | (27,872) | (38,094) | (25,362)
Items that may be reclassified in the future to profit and loss |  |  |
Foreign currency translation adjustment | (681) | (854) | 1,554
Other comprehensive income (loss) | (681) | (854) | 1,554
Comprehensive loss | (28,553) | (38,948) | (23,808)
Net loss attributable to: |  |  |
Owners of the Company | (27,776) | (37,978) | (25,245)
Non-controlling interests | (96) | (116) | (117)
Net loss | (27,872) | (38,094) | (25,362)
Comprehensive loss attributable to: |  |  |
Owners of the Company | (28,457) | (38,832) | (23,691)
Non-controlling interests | (96) | (116) | (117)
Comprehensive loss | $ (28,553) | $ (38,948) | $ (23,808)
Basic and diluted loss per share (Note 8) (in USD per share) | $ (0.23) | $ (0.40) | $ (0.30)

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Period Type: | duration