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Segment Reporting and Geographic Information - Schedule of Reconciliation of Segment Data to Consolidated Statement of Operations (Details) (Parenthetical) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014
Stock compensation expense | $ 582 | $ 830
LT Loan [Member] |  |
Interest expense debt | $ 225 |

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- Definition Unallocated share based compensation expense. + References No definition available. + Details
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Namespace Prefix: | ACFN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Aggregate amount of interest paid or due on all long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.8) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | dei_LegalEntityAxis=ACFN_LTLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |