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Empire’s asset retirement obligation activity is as follows: (Details) - USD ($)	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Asset Retirement Obligation Disclosure [Abstract]
Asset retirement obligations, beginning of period	$ 28,168,427	$ 25,000,740
Additions	876,955	72,000
Liabilities settled	(864,138)	(910,967)
Revisions		2,303,939
Accretion expense	1,486,929	1,277,140
Asset retirement obligation, end of period	29,668,173	27,742,852
Less current portion included in Accrued Expenses	700,000
Asset retirement obligation, long-term	$ 28,968,173	$ 27,742,852

X

- Definition

The element represents asset retirement obligation addition of estimate.

+ References

No definition available.

+ Details

Name:	empr_AssetRetirementObligationAdditionOfEstimate
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The element represents asset retirement obligation end of period.

+ References

No definition available.

+ Details

Name:	empr_AssetRetirementObligationEndOfPeriod
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The element represents asset retirement obligation longterm.

+ References

No definition available.

+ Details

Name:	empr_AssetRetirementObligationLongterm
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The element represents asset retirement obligations beginning of period.

+ References

No definition available.

+ Details

Name:	empr_AssetRetirementObligationsBeginningOfPeriod
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The element represents less current portion included in accrued expenses.

+ References

No definition available.

+ Details

Name:	empr_LessCurrentPortionIncludedInAccruedExpenses
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The element represents liabilities settled.

+ References

No definition available.

+ Details

Name:	empr_LiabilitiesSettled
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The element represents revision to estimates.

+ References

No definition available.

+ Details

Name:	empr_RevisionToEstimates
Namespace Prefix:	empr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Amount recognized for the passage of time, typically for liabilities, that have been discounted to their net present values. Excludes accretion associated with asset retirement obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 35
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481639/420-10-35-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 420
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482017/420-10-50-1

+ Details

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

X

- References

No definition available.

+ Details

Name:	us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration