Name:	altn_AnnualLeasePaymentYearsSixteenThroughTwentyFive
Namespace Prefix:	altn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

No definition available.

Name:	altn_CombinedEstimatedAnnualCost
Namespace Prefix:	altn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.

Name:	altn_CombinedEstimatedAnnualCostThereafter
Namespace Prefix:	altn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

No definition available.

Name:	altn_OutstandingLoan
Namespace Prefix:	altn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

No definition available.

Name:	altn_TermOfLease
Namespace Prefix:	altn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

No definition available.

Name:	altn_TermOfLeaseCommencement
Namespace Prefix:	altn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

No definition available.

Name:	altn_TermOfSecurityDeposit
Namespace Prefix:	altn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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-Section 50
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Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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-Publisher FASB
-Name Accounting Standards Codification
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Name:	us-gaap_ProceedsFromIssuanceOfPrivatePlacement
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Cash outflows under financing arrangements with vendors (seller-financed debt), which had a maturity date at inception of more than one year (or more than one operating cycle, if longer); such debt may have arisen from purchases of property, plant and equipment or other productive assets.

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Name:	us-gaap_RepaymentsOfLongtermLoansFromVendors
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

The amount of the quarterly rental payments due under the lease entered into in connection with the transactions involving the sale of property to another party and the lease of the property back to the seller.

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-Publisher FASB
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The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

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-Name Accounting Standards Codification
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Alternus Energy Inc. 10-K