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v3.20.1

Revenue - Schedule of Sales Commissions Contract Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Sales commissions contract assets beginning balance | $ 143 | $ 152
Additions during the period | 87 | 112
Amortization of sales commissions | (92) | (121)
Sales commissions contract assets ending balance | 138 | 143
Hardware [Member] |  |
Sales commissions contract assets beginning balance | 107 | 125
Additions during the period | 69 | 91
Amortization of sales commissions | (75) | (109)
Sales commissions contract assets ending balance | 101 | 107
Monitoring [Member] |  |
Sales commissions contract assets beginning balance | 36 | 27
Additions during the period | 18 | 21
Amortization of sales commissions | (17) | (12)
Sales commissions contract assets ending balance | $ 37 | $ 36

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- Definition Amortization of sales commissions contract assets. + References No definition available. + Details
Name: | ACFN_AmortizationOfSalesCommissionsContractAssets
Namespace Prefix: | ACFN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Sales commissions contract assets. + References No definition available. + Details
Name: | ACFN_SalesCommissionsContractAssets
Namespace Prefix: | ACFN_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Sales commissions contract assets additions during the period. + References No definition available. + Details
Name: | ACFN_SalesCommissionsContractAssetsAdditionsDuringPeriod
Namespace Prefix: | ACFN_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
Name: | srt_ProductOrServiceAxis=ACFN_HardwareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_ProductOrServiceAxis=ACFN_MonitoringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |