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Oil Properties - Additional Infoamation (Detail) (USD $)	12 Months Ended
	Dec. 31, 2011
Oil Properties Additional Information [Line Items]
Proceeds from Sales of Assets, Investing Activities	$ 3,825,000

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- Details

Name:	enrj_OilPropertiesAdditionalInformationLineItems
Namespace Prefix:	enrj_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Aggregate cash proceeds received from a combination of transactions that are classified as investing activities in which assets, which may include one or more investments, are sold to third-party buyers. This element can be used by entities to aggregate proceeds from all asset sales that are classified as investing activities.

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromSalesOfAssetsInvestingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration