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Discontinued Operations (Details Narrative) (U.S. Seismic Systems, Inc [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
U.S. Seismic Systems, Inc [Member]
Inventory impairment charges	$ 4,935ACFN_DisposalGroupIncludingDiscontinuedOperationInventoryImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Fixed assets impairment charges	969ACFN_DisposalGroupIncludingDiscontinuedOperationFixedAssetsImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember	800ACFN_DisposalGroupIncludingDiscontinuedOperationFixedAssetsImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Goodwill impairment charges	1,402ACFN_DisposalGroupIncludingDiscontinuedOperationGoodwillImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Other intangibles impairment charges	2,034ACFN_DisposalGroupIncludingDiscontinuedOperationOtherIntangiblesImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Inventory impairment charges	1,055ACFN_DisposalGroupIncludingDiscontinuedOperationOperatingExpenseInventoryCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember	958ACFN_DisposalGroupIncludingDiscontinuedOperationOperatingExpenseInventoryCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Employee severance and termination benefits	(88)ACFN_EmployeeSeveranceAndTerminationBenefits / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Contractual lease and royalty payments	(775)ACFN_ContractualLeaseAndRoyaltyPayments / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Contractual lease and royalty severance	(91)ACFN_ContractualLeaseAndRoyaltySeverance / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Debt due to the bank	$ (1,460)us-gaap_LoansPayableToBank / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Debt interest rate	5.00%us-gaap_AccountsPayableInterestBearingInterestRate / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember

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Contractual Lease And Royalty Payments.

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Amount of impairment charges on fixed assets attributable to disposal group.

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Amount of impairment inventory charges on attributable to disposal group.

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Employee Severance And Termination Benefits.

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Reflects the effective interest rate as of the balance sheet date on interest-bearing trade payables.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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