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Income Taxes (Details Narrative) (USD $) In Thousands, unless otherwise specified	12 Months Ended		0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Aug. 05, 2013
Valuation allowance, deferred tax asset, change in amount	$ 6,043us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount
Operating loss carry forwards	73us-gaap_OperatingLossCarryforwards
Percentage of deduction of certain repatriated foreign earnings	85.00%ACFN_PercentageOfDeductionOfCertainRepatriatedForeignEarnings
U.S. Income Tax Rate	34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	34.00%us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate
Percentage of general corporate tax rate currently stands	30.00%ACFN_PercentageOfGeneralCorporateTaxRateCurrentlyStands
Accrued interest	0us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued	0us-gaap_IncomeTaxExaminationPenaltiesAndInterestAccrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Other assets	569us-gaap_DeferredTaxAssetsOther	262us-gaap_DeferredTaxAssetsOther
DSIT [Member]
Other current assets	138ACFN_DeferredTaxAssetsOtherCurrentAsset / us-gaap_CreditFacilityAxis = ACFN_DsitMember	192ACFN_DeferredTaxAssetsOtherCurrentAsset / us-gaap_CreditFacilityAxis = ACFN_DsitMember
Other assets	$ 451us-gaap_DeferredTaxAssetsOther / us-gaap_CreditFacilityAxis = ACFN_DsitMember	$ 295us-gaap_DeferredTaxAssetsOther / us-gaap_CreditFacilityAxis = ACFN_DsitMember
Minimum [Member]
Percentage of corporate tax rate increased by achieving budget Objectives in the Years 2013 and 2014			1.50%ACFN_PercentageOfCorporateTaxRateIncreasedByAchievingBudget / us-gaap_RangeAxis = us-gaap_MinimumMember
Maximum [Member]
Percentage of corporate tax rate increased by achieving budget Objectives in the Years 2013 and 2014			26.50%ACFN_PercentageOfCorporateTaxRateIncreasedByAchievingBudget / us-gaap_RangeAxis = us-gaap_MaximumMember

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Percentage of deduction of certain foreign earnings that are repatriated, as defined in The American Jobs Creation Act.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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