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NATURE OF OPERATIONS Revenue Recognition (Details) | 12 Months Ended
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Dec. 31, 2012
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |
Period (in months) of service, advance payment received | 12

X
- Definition Period (in months) of service performed by the Company for which it receives an advance payment from the client + References No definition available. + Details
Name: | acfn_PeriodInMonthsOfServiceAdvancePaymentReceived
Namespace Prefix: | acfn_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RevenueRecognitionMultipleDeliverableArrangementsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration