XML 31 R37.htm IDEA: XBRL DOCUMENT
v3.19.3

Stockholders' Equity (Tables) | 3 Months Ended
--- | ---
Sep. 30, 2019
Equity [Abstract] |
Dividends paid | The following table reflects the dividends paid within the respective three month periods:
Common Stock Cash Dividends per Share | 2019 |  | 2018
First quarter ended September 30, | $ | 0.10 |  |  | $ | 0.10 |
Schedule of share repurchases | The following table shows all treasury stock purchases in the respective periods:
| Three Months Ended September 30,
| 2019 |  | 2018
Number of treasury shares acquired (1) | 231,376 |  |  | 9,087 |
Average cost per share | $ | 5.89 |  |  | $ | 9.90 |
Total cost of treasury shares acquired | $ | 1,362,424 |  |  | $ | 89,992 |
(1) The fiscal 2019 number of shares is net of 8,939 shares forfeited in the period.

X
- Definition Schedule Of Share Repurchases [Table Text Block] + References No definition available. + Details
Name: | epm_ScheduleOfShareRepurchasesTableTextBlock
Namespace Prefix: | epm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information related to dividends declared, including paid and unpaid dividends. + References No definition available. + Details
Name: | us-gaap_DividendsDeclaredTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration