Applicable Percentage

No definition available.

Name:	eose_ApplicablePercentage
Namespace Prefix:	eose_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Applicable Percentage Increased

+ References

No definition available.

+ Details

Name:	eose_ApplicablePercentageIncreased
Namespace Prefix:	eose_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Common Stock, Aggregate Shares Issuable Upon Exercise or Conversion of Equity Instruments

+ References

No definition available.

+ Details

Name:	eose_CommonStockAggregateSharesIssuableUponExerciseOrConversionOfEquityInstruments
Namespace Prefix:	eose_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Debt Instrument, Original Issue Discount, Percentage

+ References

No definition available.

+ Details

Name:	eose_DebtInstrumentOriginalIssueDiscountPercentage
Namespace Prefix:	eose_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Preferred Stock, Convertible, Number of Common shares Issuable at Conversion

+ References

No definition available.

+ Details

Name:	eose_PreferredStockConvertibleNumberOfCommonSharesIssuableAtConversion
Namespace Prefix:	eose_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Proceeds from Issuance of Secured Debt, Net of Original Issue Discount

+ References

No definition available.

+ Details

Name:	eose_ProceedsFromIssuanceOfSecuredDebtNetOfOriginalIssueDiscount
Namespace Prefix:	eose_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-13

+ Details

Name:	us-gaap_PreferredStockParOrStatedValuePerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt.

+ References

+ Details

Name:	us-gaap_PreferredStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-14

+ Details

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

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=eose_DelayedDrawTermLoanDDTLMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=eose_SeriesB3PreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=eose_NonVotingSeriesB3ConvertiblePreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Subsequent Events (Details) $ / shares in Units, $ in Thousands						9 Months Ended
	Nov. 01, 2024 USD ($) $ / shares shares	Oct. 31, 2024 USD ($)	Aug. 31, 2024 USD ($)	Aug. 29, 2024 USD ($)	Jun. 21, 2024 USD ($)	Sep. 30, 2024 USD ($) $ / shares shares	Sep. 30, 2023 USD ($)	Dec. 31, 2023 $ / shares shares
Subsequent Event [Line Items]
Proceeds from issuance of secured debt \| $						$ 98,575	$ 0
Preferred stock, shares issued (in shares) \| shares						0		0
Preferred stock issued per unit (in dollars per share) \| $ / shares						$ 0.0001		$ 0.0001
Delayed Draw Term Loan \| Secured Debt
Subsequent Event [Line Items]
Proceeds from issuance of secured debt \| $			$ 30,000	$ 30,000	$ 75,000
Percentage of original issue discount				5.00%	5.00%
Subsequent event \| Common Stock
Subsequent Event [Line Items]
Number of common shares issuable upon conversion of Preferred Series B-3 shares (in shares) \| shares	38,259,864
Aggregate shares of common stock issuable upon exercise or conversion of equity instruments (in shares) \| shares	142,282,584
Applicable percentage (percent)	0.309
Subsequent event \| Series B-3 Preferred Stock
Subsequent Event [Line Items]
Preferred stock, shares issued (in shares) \| shares	38.259864
Preferred stock issued per unit (in dollars per share) \| $ / shares	$ 0.0001
Subsequent event \| Delayed Draw Term Loan \| Secured Debt
Subsequent Event [Line Items]
Proceeds from issuance of secured debt \| $	$ 65,000	$ 65,000
Proceeds from issuance of secured debt, net of original issue discount \| $	$ 61,750
Subsequent event \| Non-voting Series B-3 Convertible Preferred Stock
Subsequent Event [Line Items]
Applicable percentage increased	6.10%