Accounts receivable formula-based financing maximum amount.

No definition available.

Name:	ACFN_AccountsReceivableFormulabasedFinancingMaximumAmount
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount borrowed under the commitment.

+ References

No definition available.

+ Details

Name:	ACFN_AmountBorrowedUnderCommitment
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Commitment to provide an additional loan.

+ References

No definition available.

+ Details

Name:	ACFN_CommitmentToProvideAdditionalLoan
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Escrow fund, gross.

+ References

No definition available.

+ Details

Name:	ACFN_EscrowFundGross
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Escrow fund tax withheld.

+ References

No definition available.

+ Details

Name:	ACFN_EscrowFundTaxWithheld
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Invoice percentage eligible for financing arrangement.

+ References

No definition available.

+ Details

Name:	ACFN_InvoicePercentageEligibleForFinancingArrangement
Namespace Prefix:	ACFN_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Loan balance under loan and security agreement.

+ References

No definition available.

+ Details

Name:	ACFN_LoanBalanceUnderLoanAndSecurityAgreement
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Minimum loan balance under loan and security agreement for minimum of one year.

+ References

No definition available.

+ Details

Name:	ACFN_MinimumLoanBalanceUnderLoanAndSecurityAgreementforMinimumOfOneYear
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Monthly service charge percentage.

+ References

No definition available.

+ Details

Name:	ACFN_MonthlyServiceChargePercentage
Namespace Prefix:	ACFN_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Non-escrow corporate cash and cash equivalents.

+ References

No definition available.

+ Details

Name:	ACFN_NonescrowCorporateCashAndCashEquivalent
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Remaining commitment amount.

+ References

No definition available.

+ Details

Name:	ACFN_RemainingCommitmentAmount
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

+ Details

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

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_EscrowDeposit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Description of the nature and terms of commitment.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_TypeOfArrangementAxis=ACFN_OmnimetrixLoanAndSecurityAgreementasAmendedOnOctoberTwoThousandSeventeeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=ACFN_OmnimetrixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TypeOfArrangementAxis=ACFN_LoanandSecurityAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_TitleOfIndividualAxis=ACFN_DirectorsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsidiarySaleOfStockAxis=ACFN_SaleOfDSITSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreationDateAxis=ACFN_NovemberEightTwoThousandSeventeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Basis of Presentation and Liquidity (Details Narrative) - USD ($) $ in Thousands	1 Months Ended	9 Months Ended
	Oct. 31, 2017	Sep. 30, 2017	Feb. 28, 2016
Non-escrow corporate cash and cash equivalents		$ 133
Commitment maturity description		maturity date no earlier than April 2018
Omni Metrix Loan and Security Agreement as amended on October 2017 [Member]
Accounts receivable formula-based financing maximum amount			$ 1,000
Minimum loan balance with lender			$ 150
Omni Metrix [Member]
Debt interest rate		4.25%
Debt interest rate description		Debt incurred under this financing arrangement bears interest at the greater of prime (4.25% at September 30, 2017) plus 2% or 6% per year.
Monthly service charge percentage		0.90%
Invoice percentage eligible for financing arrangement		75.00%
Omni Metrix [Member] \| Loan and Security Agreement [Member]
Loan balance under the loan and security agreement		$ 350
Directors [Member]
Commitment to provide an additional loan	$ 1,000
2016 Sale of DSIT Shares [Member]
Escrowed funds	538
Escrow fund, gross	579
Escrow fund tax withheld	$ 41
November 8, 2017 [Member]
Non-escrow corporate cash and cash equivalents		516
Amount borrowed under the commitment		400
Remaining commitment amount		$ 600