Number of Quarterly Dividends

No definition available.

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- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

+ Details

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- Definition

Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

+ References

+ Details

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- Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Details

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- Details

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Stockholders' Equity - Common Stock (Details) (USD $)	1 Months Ended	3 Months Ended			9 Months Ended
Stockholders' Equity - Common Stock (Details) (USD $)	Dec. 31, 2013	Mar. 31, 2015 quarter	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2015 quarter
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividend per common share	$ 0.10	$ 0.05	$ 0.10	$ 0.10
Number of quarterly dividends		3epm_NumberofQuarterlyDividends			3epm_NumberofQuarterlyDividends
Cash dividends to common stockholders					$ 8,192,989us-gaap_DividendsCommonStockCash
2004 Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted common stock authorized for issuance under plan		6,500,000			6,500,000
2004 Stock Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted common stock authorized for issuance under plan		144,468			144,468
Various Employees \| 2004 Stock Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted common stock authorized for issuance under plan		43,258			43,258
Directors \| 2004 Stock Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares of restricted common stock authorized for issuance under plan		25,740			25,740