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Asset Retirement Obligation (Tables) | 12 Months Ended
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Dec. 31, 2012
Asset Retirement Obligation [Abstract] |
Changes in Asset Retirement Obligations [Table Text Block] | The following shows the changes in asset retirement obligations:
Asset retirement obligations, January 1, 2011 |  | $ | 883,066 |
Liabilities incurred during the period |  |  | 297,800 |
Liabilities settled during the period |  |  | (359,513 | )
Accretion |  |  | 87,437 |
Asset retirement obligations, December 31, 2011 |  |  | 908,790 |
Liabilities incurred during the period |  |  | 347,018 |
Liabilities settled during the year |  |  | (1,427 | )
Accretion |  |  | 81,770 |
Asset retirement obligations, December 31, 2012 |  | $ | 1,336,151 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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