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Asset Retirement Obligations (Tables) | 6 Months Ended
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Jun. 30, 2012
Asset Retirement Obligations [Abstract] |
Reconciliation of the total liability for asset retirement obligations | The following is a reconciliation of the total liability for asset retirement obligations:
|  | (In thousands) |
|  | June 30, |  |  | December 31, |
|  | 2012 |  |  | 2011 |
Beginning asset retirement obligation |  | $ | 510 |  |  | $ | 303 |
Accretion of discount |  |  | 16 |  |  |  | 23 |
Liabilities incurred |  |  | 93 |  |  |  | 187 |
Liabilities sold |  |  | -- |  |  |  | (3 | )
Ending asset retirement obligation |  | $ | 619 |  |  | $ | 510 |
Mining properties |  | $ | 155 |  |  | $ | 149 |
Oil & Gas wells |  |  | 464 |  |  |  | 361 |
Ending asset retirement obligation |  | $ | 619 |  |  | $ | 510 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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