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SUPPLEMENTAL FINANCIAL INFORMATION | 9 Months Ended
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Sep. 30, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Supplemental Financial Information | SUPPLEMENTAL FINANCIAL INFORMATION The components of revenues are as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Uranium concentrates | $ | 8,687 |  |  | $ | 19,159 |  |  | $ | 33,664 |  |  | $ | 49,795 |
Alternate feed materials processing and other | 15 |  |  | — |  |  | 40 |  |  | 669 |
Revenues | $ | 8,702 |  |  | $ | 19,159 |  |  | $ | 33,704 |  |  | $ | 50,464 |
The components of other income (expense) are as follows:
| Three months ended September 30, |  | Nine months ended September 30,
| 2016 |  | 2015 |  | 2016 |  | 2015
Interest income | $ | 36 |  |  | $ | 21 |  |  | $ | 76 |  |  | $ | 60 |
Change in value of investments accounted at fair value | — |  |  | 150 |  |  | — |  |  | 112 |
Change in value of warrant liabilities | 1,178 |  |  | 712 |  |  | 1,879 |  |  | 712 |
Change in value of convertible debentures | 323 |  |  | 18 |  |  | (666 | ) |  | (890 | )
Other | 333 |  |  | (63 | ) |  | 814 |  |  | 379 |
Other income (expense) | $ | 1,870 |  |  | $ | 838 |  |  | $ | 2,103 |  |  | $ | 373 |

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