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EQUITY DSIT Warrants (Details)	9 Months Ended
EQUITY DSIT Warrants (Details)	Sep. 30, 2012
Equity [Abstract]
Expiring DSIT warrants	10.00%

X

- Definition

Expiring DSIT warrants

+ References

No definition available.

+ Details

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

X

- Details

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