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SUBSEQUENT EVENTS GridSense Employee Incentive Plan (Details) (Subsequent Event [Member]) | 0 Months Ended
--- | ---
Jan. 14, 2013
Subsequent Event [Member] |
Subsequent Event [Line Items] |
Bonus pool - GridSense Employee Incentive Plan | 17.00%

X
- Definition Bonus pool - GridSense Employee Incentive Plan + References No definition available. + Details
Name: | acfn_BonusPoolGridsenseEmployeeIncentivePlan
Namespace Prefix: | acfn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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