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v3.21.1

Summary of Significant Accounting Policies (Details) | 4 Months Ended
--- | ---
Dec. 31, 2020 USD ($) shares
Accounting Policies [Abstract] |
Warrants to purchase | shares | 13,000,000
FDIC insured amount | $ | $ 250,000

X
- Definition The number of warrants to purchase. + References No definition available. + Details
Name: | empw_WarrantsToPurchase
Namespace Prefix: | empw_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation. + References No definition available. + Details
Name: | us-gaap_CashFDICInsuredAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant