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Warrants (Details) - Schedule of reconciliation of the beginning and ending balances of warrants liability - Fair Value, Inputs, Level 3 [Member] $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($)
Warrants (Details) - Schedule of reconciliation of the beginning and ending balances of warrants liability [Line Items] |
Beginning balance | $ 1,152
Fair value change of the issued warrants included in earnings | (61)
Ending balance | $ 1,091

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- Definition It represents the fair value of issued warrants. + References No definition available. + Details
Name: | negg_FairValueOfIssuedWarrants
Namespace Prefix: | negg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fair Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
Name: | negg_WarrantsAndRightsOutstandingFairValue
Namespace Prefix: | negg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | negg_WarrantsDetailsScheduleofreconciliationofthebeginningandendingbalancesofwarrantsliabilityLineItems
Namespace Prefix: | negg_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |