SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of Consolidation (Details)	12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]
Subsidiary definition - minimum percentage ownership	50.00%

Subsidiary definition - minimum percentage ownership

No definition available.

Name:	acfn_SubsidiaryDefinitionMinimumPercentageOwnership
Namespace Prefix:	acfn_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration