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Asset Retirement Obligations (Tables) | 12 Months Ended
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Mar. 31, 2013
Asset Retirement Obligation Disclosure [Abstract] |
Rollforward of the asset retirement obligations |
| 2013 |  | 2012
Carrying amount of asset retirement obligations as of April 1 | $ 663,279 |  | $ 578,911
Liabilities incurred | 114,003 |  | 53,468
Liabilities settled | (3,246) |  | (5,351)
Accretion expense | 39,376 |  | 36,251
Carrying amount of asset retirement obligations as of March 31 | 813,412 |  | 663,279
Less: Current portion | 50,000 |  | 50,000
Non-Current asset retirement obligation | $ 763,412 |  | $ 613,279

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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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