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Restructing and Related Charges (Details Narrative) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance costs |  | $ 411 us-gaap_SeveranceCosts1 | $ 434 us-gaap_SeveranceCosts1 |
Restructuring costs - abandonment of fixed assets |  |  | 573 ACFN_Restructuringcostsabandonmentoffixedassets |
Restructuring reserve, current | 137 us-gaap_RestructuringReserveCurrent | 82 us-gaap_RestructuringReserveCurrent | 137 us-gaap_RestructuringReserveCurrent |
GridSense [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Other restructuring costs |  | 79 us-gaap_OtherRestructuringCosts / us-gaap_RestructuringPlanAxis = ACFN_GridSenseMember |  |
Additional restructuring charge |  | 198 ACFN_AdditionalRestructuringCharge / us-gaap_RestructuringPlanAxis = ACFN_GridSenseMember |  |
Expected o be paid restructuring cost date |  | Dec. 31, 2015 |  |
Restructuring reserve | 63 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_GridSenseMember | 38 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_GridSenseMember | 63 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_GridSenseMember |
OmniMetrix [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance costs | 178 us-gaap_SeveranceCosts1 / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  |  |
Other restructuring costs | 202 us-gaap_OtherRestructuringCosts / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  | 45 us-gaap_OtherRestructuringCosts / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |
Restructuring costs - abandonment of fixed assets | 415 ACFN_Restructuringcostsabandonmentoffixedassets / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  |  |
Expected o be paid restructuring cost date |  | Dec. 31, 2019 |  |
Restructuring reserve | 239 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember | 248 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember | 239 us-gaap_RestructuringReserve / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |
Payment of lease cost |  |  | 194 us-gaap_PaymentsForLeasingCosts / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |
Lease provision increase |  | 96 us-gaap_ProvisionForLeaseLosses / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  |
Restructuring reserve, current |  | (44)us-gaap_RestructuringReserveCurrent / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  |
Restructuring reserve, noncurrent |  | (204)us-gaap_RestructuringReserveNoncurrent / us-gaap_RestructuringPlanAxis = ACFN_OmnimetrixMember |  |
GridSense [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Severance costs |  |  | 302 us-gaap_SeveranceCosts1 / us-gaap_PublicUtilitiesInventoryAxis = ACFN_GridSenseMember |
Restructuring and related cost, number of positions eliminated |  |  | 17 us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated / us-gaap_PublicUtilitiesInventoryAxis = ACFN_GridSenseMember |
Other restructuring costs |  |  | 101 us-gaap_OtherRestructuringCosts / us-gaap_PublicUtilitiesInventoryAxis = ACFN_GridSenseMember |
Restructuring costs - abandonment of fixed assets |  |  | 39 ACFN_Restructuringcostsabandonmentoffixedassets / us-gaap_PublicUtilitiesInventoryAxis = ACFN_GridSenseMember |
Restructuring costs - inventory charge |  |  | $ 152 ACFN_Restructuringcostsinventorycharge / us-gaap_PublicUtilitiesInventoryAxis = ACFN_GridSenseMember |

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- Definition Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Amount of cash outflow for costs that are essential to originate the lease and would not otherwise have been incurred without the lease agreement. Amount includes, but is not limited to, cash outflows to evaluate the lessee's credit condition, guarantees, and collateral and cash outflows for costs incurred in negotiating, processing, and executing the lease agreement. + References No definition available. + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
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- Definition Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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- Definition Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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