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EQUITY DSIT Options (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
DSIT Options [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Alternate Vesting Period	25 years
Share based compensation - DSIT	$ 159

X

- Definition

Alternate vesting period for DSIT options following modification

+ References

No definition available.

+ Details

Name:	acfn_AlternatevestingperiodforDSIToptionsfollowingmodification
Namespace Prefix:	acfn_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	acfn_DSITOptionsAbstract
Namespace Prefix:	acfn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Share based compensation - DSIT

+ References

No definition available.

+ Details

Name:	acfn_SharebasedcompensationDSIT
Namespace Prefix:	acfn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration