Proceeds from sale of lease interest.

No definition available.

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

- Definition

Sale of lease interest.

+ References

No definition available.

+ Details

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

- Definition

Leased area with working interest ownership on which oil and gas wells have not been drilled or completed that would permit production of economic quantities of oil and gas. Excludes area of undrilled acreage held by production under terms of lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

+ Details

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Namespace Prefix:	srt_
Data Type:	dtr-types:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 360
-Section 35
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466

+ Details

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

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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PROPERTY AND EQUIPMENT (Details Narrative)		1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
PROPERTY AND EQUIPMENT (Details Narrative)	Jan. 27, 2020 USD ($) a	Feb. 29, 2020 USD ($) a	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)
Related Party Transaction [Line Items]
Impairment of Oil and Natural Gas Properties						$ 800,452	$ 8,671,303
Montana [Member]
Related Party Transaction [Line Items]
Purchased lease interests acres \| a	4,936
Payment for lease interests	$ 500,000
Consultant [Member]
Related Party Transaction [Line Items]
Purchased lease interests acres \| a		337
Sale of lease interest		$ 1,160,400
Proceeds from sale of lease interest		$ 1,143,760