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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