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Other Long-Term Liabilities and Deferred Credits | 12 Months Ended
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Dec. 31, 2014
Other Liabilities Disclosure [Abstract] |
Other Long-Term Liabilities and Deferred Credits | 9. OTHER LONG-TERM LIABILITIES AND DEFERRED CREDITS Other long-term liabilities and deferred credits on the balance sheet consisted of:
|  | December 31, |
|  | 2014 |  |  | 2013 |
Royalties payable(1) |  | $ | 500 |  |  | $ | 500 |
Crownpoint property(1) |  |  | 450 |  |  |  | 450 |
GE purchase contract(2) |  |  | — |  |  |  | 400 |
|  | $ | 950 |  |  | $ | 1,350 |
| (1) | Royalties payable and Crownpoint property liability were derived during prior years of production. Liabilities do not accrue interest or have a stated maturity date.
| (2) | Balance is due on August 1, 2015 and has been reclassified to short-term accrued liabilities as of December 31, 2014.

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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