XML 37 R24.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Other Current Liabilities (Tables) | 9 Months Ended
--- | ---
Mar. 31, 2014
Other Current Liabilities |
Schedule of other current liabilities |
|  | March 31, 2014 |  | June 30, 2013 |
Accrued retirement obligation |  | $ | 363,876 |  | $ | — |
Asset retirement obligations due within one year |  | 173,084 |  | — |
Accrued Louisiana franchise taxes liabilities |  | 81,505 |  | 94,116 |
Accrued - other |  | 55,930 |  | 59,066 |
Other current liabilities |  | $ | 674,395 |  | $ | 153,182 |

X
- Details
Name: | epm_OtherCurrentLiabilitiesDisclosureAbstract
Namespace Prefix: | epm_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of other current liabilities. + References No definition available. + Details
Name: | us-gaap_OtherCurrentLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration