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Employee Benefit Plan (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Defined Benefit Plan [Abstract] |  |  |
Eligible compensation percentage | 100.00% |  |
Total contributions | $ 1.6 | $ 1.9 | $ 1.7
Percentage of contribution vested | 100.00% |  |

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- Definition Percentage of contribution vested. + References No definition available. + Details
Name: | negg_PercentageOfContributionVested
Namespace Prefix: | negg_
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Balance Type: | na
Period Type: | duration

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- Definition Percentage of eligible employees compensation. + References No definition available. + Details
Name: | negg_PercentageOfEligibleEmployeesCompensation
Namespace Prefix: | negg_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | instant

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

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- Definition Amount of contributions received by defined benefit plan from participant which increase benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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