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v3.20.4

Revenue - Schedule of Sales Commissions Contract Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Sales commissions contract assets beginning balance | $ 138 | $ 143
Additions during the period | 129 | 87
Amortization of sales commissions | (90) | (92)
Sales commissions contract assets ending balance | 177 | 138
Hardware [Member] |  |
Sales commissions contract assets beginning balance | 101 | 107
Additions during the period | 106 | 69
Amortization of sales commissions | (71) | (75)
Sales commissions contract assets ending balance | 136 | 101
Monitoring [Member] |  |
Sales commissions contract assets beginning balance | 37 | 36
Additions during the period | 23 | 18
Amortization of sales commissions | (19) | (17)
Sales commissions contract assets ending balance | $ 41 | $ 37

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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: |