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

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

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

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

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

+ Details

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

- Definition

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

+ 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 210.9-03.7(e))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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

- 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_RangeAxis=ACFN_MaximumAmountDueOnOctoberTwoThousandSeventeenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_CreationDateAxis=ACFN_JulySevenTwoThousandSeventeenMember
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:

Basis of Presentation and Liquidity (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Oct. 02, 2016	Feb. 28, 2016
Debt interest rate	3.15%
Omni Metrix [Member]
Accounts receivable formula-based financing maximum amount				$ 500
Debt interest rate	4.00%
Debt interest rate description	Debt incurred under this financing arrangement bears interest at the greater of prime (4.00% at March 31, 2017) plus 2% or 6% per year.
Monthly service charge percentage	1.00%
Invoice percentage eligible for financing arrangement	75.00%
Minimum loan balance with lender			$ 150
Omni Metrix [Member] \| Loan and Security Agreement [Member]
Minimum loan balance with lender	$ 274	$ 376
Maximum Amount Due on October 2017 [Member]
Escrowed funds	579
May 10, 2017 [Member]
Non-escrow corporate cash and cash equivalents	333
July 7, 2017 [Member] \| Directors Member]
Commitment to provide an additional loan	$ 1,000