Supplemental Oil and gas Reserve Information (Unaudited) (Cost Incurred in Property Acquisition, Exploration and Development Activities) (Detail) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Acquisition of properties	$ 1,017,698	$ 124,028
Exploration costs	0us-gaap_CostsIncurredExplorationCosts	0us-gaap_CostsIncurredExplorationCosts
Development costs	6,078,167us-gaap_CostsIncurredDevelopmentCosts	7,484,419us-gaap_CostsIncurredDevelopmentCosts
Net capitalized costs	$ 7,095,865	$ 7,608,447

Costs Incurred Acquisition Of Oil And Gas Properties Net.

No definition available.

Name:	enrj_CostsIncurredAcquisitionOfOilAndGasPropertiesNet
Namespace Prefix:	enrj_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Cost incurred, including capitalized costs and costs charged to expense, in acquisition of oil and gas properties.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 18

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447

+ Details

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

- Definition

Development costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 18

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447

+ Details

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

- Definition

Exploration costs incurred, including capitalized costs and costs charged to expense, in oil and gas activities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Exploration

-URI http://asc.fasb.org/extlink&oid=6512329

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 18

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62014-109447

+ Details

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