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Equity - Summary Information Regarding To DSIT Stock Option Plan Outstanding and Exercisable (Details) (USD $) | 12 Months Ended
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Dec. 31, 2014
Number of Shares Outstanding | 1,812,428 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions
Number of Shares Exercisable | 1,128,434 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions
DSIT Stock Option Plan [Member] |
Number of Shares Outstanding | 239,424 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember
Weighted Average Exercise Price | $ 1.67 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember
Number of Shares Exercisable | 101,904 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember
Weighted Average Exercise Price | $ 1.45 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember
Range Of Exercise Prices One [Member] |
Range of Exercise Price Lower Limit | $ 0.97 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Range of Exercise Price Upper limit | $ 2.56 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Number of Shares Outstanding | 560,615 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Weighted Average Remaining Contractual Life (in years) | 6 years 3 months 18 days
Weighted Average Exercise Price | $ 1.64 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Number of Shares Exercisable | 65,500 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Weighted Average Exercise Price | $ 2.35 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Range Of Exercise Prices One [Member] | DSIT Stock Option Plan [Member] |
Range of Exercise Price Lower Limit | $ 1.05 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Range of Exercise Price Upper limit | $ 1.26 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Number of Shares Outstanding | 147,770 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Weighted Average Remaining Contractual Life (in years) | 3 years 7 months 6 days
Weighted Average Exercise Price | $ 1.18 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Number of Shares Exercisable | 81,068 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Weighted Average Exercise Price | $ 1.20 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesOneMember
Range Of Exercise Prices Two [Member] |
Range of Exercise Price Lower Limit | $ 3.51 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Range of Exercise Price Upper limit | $ 5.00 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Number of Shares Outstanding | 426,264 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Weighted Average Remaining Contractual Life (in years) | 4 years 6 months
Weighted Average Exercise Price | $ 4.19 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Number of Shares Exercisable | 336,388 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Weighted Average Exercise Price | $ 4.24 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Range Of Exercise Prices Two [Member] | DSIT Stock Option Plan [Member] |
Range of Exercise Price Upper limit | $ 2.41 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Number of Shares Outstanding | 91,654 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Weighted Average Remaining Contractual Life (in years) | 3 years 7 months 6 days
Weighted Average Exercise Price | $ 2.41 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Number of Shares Exercisable | 20,836 us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember
Weighted Average Exercise Price | $ 2.41 us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1 / us-gaap_PlanNameAxis = ACFN_DSITStockOptionPlanMember / us-gaap_RangeAxis = ACFN_RangeOfExercisePricesTwoMember

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- Definition Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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