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Discontinued Operations (Details Narrative) (U.S. Seismic Systems, Inc [Member], USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013
U.S. Seismic Systems, Inc [Member] |  |
Inventory impairment charges | $ 4,935 ACFN_DisposalGroupIncludingDiscontinuedOperationInventoryImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember |
Fixed assets impairment charges | 969 ACFN_DisposalGroupIncludingDiscontinuedOperationFixedAssetsImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember | 800 ACFN_DisposalGroupIncludingDiscontinuedOperationFixedAssetsImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember
Goodwill impairment charges | 1,402 ACFN_DisposalGroupIncludingDiscontinuedOperationGoodwillImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember |
Other intangibles impairment charges | 2,034 ACFN_DisposalGroupIncludingDiscontinuedOperationOtherIntangiblesImpairmentCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember |
Inventory impairment charges | 1,055 ACFN_DisposalGroupIncludingDiscontinuedOperationOperatingExpenseInventoryCharges / dei_LegalEntityAxis = ACFN_USSeismicSystemsIncMember | 958 ACFN_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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- Definition Contractual Lease And Royalty Severance. + References No definition available. + Details
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- Definition Amount of impairment charges on fixed assets attributable to disposal group. + References No definition available. + Details
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- Definition Disposal Group Including Discontinued Operation Goodwill Impairment Charges. + References No definition available. + Details
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- Definition Amount of impairment inventory charges on attributable to disposal group. + References No definition available. + Details
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- Definition Employee Severance And Termination Benefits. + References No definition available. + Details
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- Definition Reflects the effective interest rate as of the balance sheet date on interest-bearing trade payables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 25 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=29642582&loc=d3e27881-108397 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 25 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=29642582&loc=d3e27862-108397 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 + Details
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- Definition 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. + 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 210.9-03.16) -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 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16(a)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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