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Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands		9 Months Ended
	Jun. 28, 2019	Sep. 30, 2019
Statement of Cash Flows [Abstract]
Offering costs	$ 208	$ 208

X

- Definition

Offering costs.

+ References

No definition available.

+ Details

Name:	ACFN_OfferingCosts
Namespace Prefix:	ACFN_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration