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Acquisitions and Disposals (Tables) | 12 Months Ended
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Dec. 31, 2017
Business Combinations [Abstract] |
Schedule of Fair Value of Purchase Consideration | The following fair value amounts were recorded as the purchase consideration:
(thousands of dollars) |  | Fair Value |
Cash, less transaction costs |  | $ | 1,950 |
Laramide common stock |  |  | 568 |
Laramide common stock purchase warrants |  |  | 506 |
Notes receivable |  |  | 3,501 |
Total consideration received |  | $ | 6,525 |
Schedule of Gain on Disposal of Properties | The Company recorded the following gain on disposal of uranium properties within its Consolidated Statement of Operations:
(thousands of dollars) |  |  |
Total consideration received |  | $ | 6,525 |
Carrying value of Churchrock project |  |  | (2,123 | )
Carrying value of other plant and equipment |  |  | (31 | )
Accounts payable |  |  | 1 |
Asset retirement obligation |  |  | 105 |
Royalty payable on Churchrock project |  |  | 450 |
Gain on disposal of HRI |  | $ | 4,927 |

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