Supplemental Oil and gas Reserve Information (Unaudited) (Summary of Capitalized Costs of Oil and gas Properties) (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Properties subject to amortization	$ 78,090,619	$ 71,917,308
Accumulated depletion	(13,827,347)	(10,567,905)
Net capitalized costs	$ 64,263,272	$ 61,349,403

Oil and natural gas properties cost method subject to amortization.

No definition available.

Name:	enrj_OilAndNaturalGasPropertiesCostMethodSubjectToAmortization
Namespace Prefix:	enrj_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e61901-109447

+ Details

Name:	us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Net amount of capitalized costs relating to oil and gas producing activities.

+ References

+ Details

Name:	us-gaap_CapitalizedCostsOilAndGasProducingActivitiesNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant