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Earnings (Loss) per Share (Details Narrative) | Dec. 31, 2023 shares
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Net Income (Loss) per Common Share: |
Options outstanding that were not included in the calculation of earnings per share | 348,000

X
- Definition The element represents share based compensation arrangement by share based payment award options outstanding number. + References No definition available. + Details
Name: | empr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber1
Namespace Prefix: | empr_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EarningsPerShareAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration