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Equity - Summary Status of DSIT Plan (Details) (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Weighted average exercise price, Granted	$ 2.14us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	$ 6.06us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
NIS [Member]
Weighted average exercise price, Granted	$ 9.38us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice / us-gaap_CurrencyAxis = ACFN_NisMember
Weighted average exercise price of forfeitures	$ 9.38us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice / us-gaap_CurrencyAxis = ACFN_NisMember
Exchange rate	$ 3.89ACFN_WeightedAverageExchangeRates / us-gaap_CurrencyAxis = ACFN_NisMember	$ 3.47ACFN_WeightedAverageExchangeRates / us-gaap_CurrencyAxis = ACFN_NisMember

X

- Definition

Weighted Average Exchange Rates.

+ References

No definition available.

+ Details

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X

- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

No definition available.

+ Details

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Period Type:	duration

X

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
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X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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