<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>258</ContextCount>
  <ElementCount>509</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>96</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>6</UnitCount>
  <MyReports>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>0000002 - Document - Audit Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/AuditInformation</Role>
      <ShortName>Audit Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>0000003 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>0000004 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>0000005 - Statement - Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedStatementsofOperations</Role>
      <ShortName>Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>0000006 - Statement - Consolidated Statements of Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedStatementsofComprehensiveIncomeLoss</Role>
      <ShortName>Consolidated Statements of Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>0000007 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedStatementsofComprehensiveIncomeLossParenthetical</Role>
      <ShortName>Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>0000008 - Statement - Consolidated Statements of Changes in Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedStatementsofChangesinStockholdersEquity</Role>
      <ShortName>Consolidated Statements of Changes in Stockholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>0000009 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ConsolidatedStatementsofCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>0000010 - Disclosure - BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/BASISOFPRESENTATION</Role>
      <ShortName>BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>0000011 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURES</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>0000012 - Disclosure - FAIR VALUE MEASUREMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/FAIRVALUEMEASUREMENT</Role>
      <ShortName>FAIR VALUE MEASUREMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>0000013 - Disclosure - ASSET HELD FOR SALE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ASSETHELDFORSALE</Role>
      <ShortName>ASSET HELD FOR SALE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>0000014 - Disclosure - DISCONTINUED OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/DISCONTINUEDOPERATIONS</Role>
      <ShortName>DISCONTINUED OPERATIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>0000015 - Disclosure - ACCOUNTS RECEIVABLE, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTSRECEIVABLENET</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>0000016 - Disclosure - PREPAIDS AND OTHER CURRENT ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PREPAIDSANDOTHERCURRENTASSETS</Role>
      <ShortName>PREPAIDS AND OTHER CURRENT ASSETS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>0000017 - Disclosure - PROPERTY AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PROPERTYANDEQUIPMENT</Role>
      <ShortName>PROPERTY AND EQUIPMENT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>0000018 - Disclosure - INTANGIBLE ASSETS, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTANGIBLEASSETSNET</Role>
      <ShortName>INTANGIBLE ASSETS, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>0000019 - Disclosure - EQUITY SECURITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIES</Role>
      <ShortName>EQUITY SECURITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>0000020 - Disclosure - OTHER LONG-TERM ASSETS, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONGTERMASSETSNET</Role>
      <ShortName>OTHER LONG-TERM ASSETS, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>0000021 - Disclosure - ACCRUED LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCRUEDLIABILITIES</Role>
      <ShortName>ACCRUED LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>0000022 - Disclosure - BORROWINGS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/BORROWINGS</Role>
      <ShortName>BORROWINGS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>0000023 - Disclosure - LEASES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/LEASES</Role>
      <ShortName>LEASES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>0000024 - Disclosure - OTHER LONG-TERM LIABILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONGTERMLIABILITIES</Role>
      <ShortName>OTHER LONG-TERM LIABILITIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>0000025 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/COMMITMENTSANDCONTINGENCIES</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>0000026 - Disclosure - INDEMNIFICATIONS AND GUARANTEES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INDEMNIFICATIONSANDGUARANTEES</Role>
      <ShortName>INDEMNIFICATIONS AND GUARANTEES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>0000027 - Disclosure - STOCKHOLDERS' EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKHOLDERSEQUITY</Role>
      <ShortName>STOCKHOLDERS' EQUITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>0000028 - Disclosure - STOCK-BASED AWARDS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKBASEDAWARDS</Role>
      <ShortName>STOCK-BASED AWARDS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>0000029 - Disclosure - EMPLOYEE RETIREMENT PLAN</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EMPLOYEERETIREMENTPLAN</Role>
      <ShortName>EMPLOYEE RETIREMENT PLAN</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>0000030 - Disclosure - REVENUE AND CONTRACT LIABILITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITY</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>0000031 - Disclosure - INTEREST INCOME (EXPENSE), NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTERESTINCOMEEXPENSENET</Role>
      <ShortName>INTEREST INCOME (EXPENSE), NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>0000032 - Disclosure - OTHER INCOME (EXPENSE), NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERINCOMEEXPENSENET</Role>
      <ShortName>OTHER INCOME (EXPENSE), NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>0000033 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXES</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>0000034 - Disclosure - NET INCOME (LOSS) PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/NETINCOMELOSSPERSHARE</Role>
      <ShortName>NET INCOME (LOSS) PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>0000035 - Disclosure - BUSINESS SEGMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/BUSINESSSEGMENTS</Role>
      <ShortName>BUSINESS SEGMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>0000036 - Disclosure - Schedule II Valuation and Qualifying Accounts</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ScheduleIIValuationandQualifyingAccounts</Role>
      <ShortName>Schedule II Valuation and Qualifying Accounts</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>995410 - Disclosure - Pay vs Performance Disclosure</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/PvpDisclosure</Role>
      <ShortName>Pay vs Performance Disclosure</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9954471 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESPolicies</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9954472 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESTables</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURES</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9954473 - Disclosure - FAIR VALUE MEASUREMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/FAIRVALUEMEASUREMENTTables</Role>
      <ShortName>FAIR VALUE MEASUREMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/FAIRVALUEMEASUREMENT</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9954474 - Disclosure - DISCONTINUED OPERATIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/DISCONTINUEDOPERATIONSTables</Role>
      <ShortName>DISCONTINUED OPERATIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/DISCONTINUEDOPERATIONS</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9954475 - Disclosure - ACCOUNTS RECEIVABLE, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTSRECEIVABLENETTables</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ACCOUNTSRECEIVABLENET</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9954476 - Disclosure - PREPAIDS AND OTHER CURRENT ASSETS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PREPAIDSANDOTHERCURRENTASSETSTables</Role>
      <ShortName>PREPAIDS AND OTHER CURRENT ASSETS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/PREPAIDSANDOTHERCURRENTASSETS</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9954477 - Disclosure - PROPERTY AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PROPERTYANDEQUIPMENTTables</Role>
      <ShortName>PROPERTY AND EQUIPMENT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/PROPERTYANDEQUIPMENT</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9954478 - Disclosure - INTANGIBLE ASSETS, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTANGIBLEASSETSNETTables</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/INTANGIBLEASSETSNET</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9954479 - Disclosure - EQUITY SECURITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESTables</Role>
      <ShortName>EQUITY SECURITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/EQUITYSECURITIES</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9954480 - Disclosure - OTHER LONG-TERM ASSETS, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONGTERMASSETSNETTables</Role>
      <ShortName>OTHER LONG-TERM ASSETS, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/OTHERLONGTERMASSETSNET</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9954481 - Disclosure - ACCRUED LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCRUEDLIABILITIESTables</Role>
      <ShortName>ACCRUED LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ACCRUEDLIABILITIES</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9954482 - Disclosure - BORROWINGS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/BORROWINGSTables</Role>
      <ShortName>BORROWINGS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/BORROWINGS</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9954483 - Disclosure - LEASES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/LEASESTables</Role>
      <ShortName>LEASES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/LEASES</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9954484 - Disclosure - OTHER LONG_TERM LIABILITIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONG_TERMLIABILITIESTables</Role>
      <ShortName>OTHER LONG_TERM LIABILITIES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9954485 - Disclosure - STOCK-BASED AWARDS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKBASEDAWARDSTables</Role>
      <ShortName>STOCK-BASED AWARDS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/STOCKBASEDAWARDS</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9954486 - Disclosure - REVENUE AND CONTRACT LIABILITY (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITYTables</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITY</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9954487 - Disclosure - INTEREST INCOME (EXPENSE), NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTERESTINCOMEEXPENSENETTables</Role>
      <ShortName>INTEREST INCOME (EXPENSE), NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/INTERESTINCOMEEXPENSENET</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9954488 - Disclosure - OTHER INCOME (EXPENSE), NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERINCOMEEXPENSENETTables</Role>
      <ShortName>OTHER INCOME (EXPENSE), NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/OTHERINCOMEEXPENSENET</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9954489 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/INCOMETAXES</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9954490 - Disclosure - NET INCOME (LOSS) PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/NETINCOMELOSSPERSHARETables</Role>
      <ShortName>NET INCOME (LOSS) PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.beyond.com/role/NETINCOMELOSSPERSHARE</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9954491 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Supplemental Cash Flow Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESSupplementalCashFlowInformationDetails</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Supplemental Cash Flow Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9954492 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Property and Equipment, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESPropertyandEquipmentNetDetails</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Property and Equipment, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9954493 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESAdditionalInformationDetails</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9954494 - Disclosure - ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Valuation Technique And Significant Unobservable Inputs Of Equity Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTINGPOLICIESANDSUPPLEMENTALDISCLOSURESValuationTechniqueAndSignificantUnobservableInputsOfEquitySecuritiesDetails</Role>
      <ShortName>ACCOUNTING POLICIES AND SUPPLEMENTAL DISCLOSURES - Valuation Technique And Significant Unobservable Inputs Of Equity Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9954495 - Disclosure - FAIR VALUE MEASUREMENT - Assets and Liabilities Measured At Fair Value (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/FAIRVALUEMEASUREMENTAssetsandLiabilitiesMeasuredAtFairValueDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENT - Assets and Liabilities Measured At Fair Value (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9954496 - Disclosure - FAIR VALUE MEASUREMENT - Level 3 Rollforward (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/FAIRVALUEMEASUREMENTLevel3RollforwardDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENT - Level 3 Rollforward (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9954497 - Disclosure - ASSET HELD FOR SALE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ASSETHELDFORSALEDetails</Role>
      <ShortName>ASSET HELD FOR SALE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ASSETHELDFORSALE</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9954498 - Disclosure - DISCONTINUED OPERATIONS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/DISCONTINUEDOPERATIONSNarrativeDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9954499 - Disclosure - DISCONTINUED OPERATIONS - Results of Discontinued Operations Through Transaction Date (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/DISCONTINUEDOPERATIONSResultsofDiscontinuedOperationsThroughTransactionDateDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS - Results of Discontinued Operations Through Transaction Date (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9954500 - Disclosure - DISCONTINUED OPERATIONS - Fair Value Inputs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/DISCONTINUEDOPERATIONSFairValueInputsDetails</Role>
      <ShortName>DISCONTINUED OPERATIONS - Fair Value Inputs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9954501 - Disclosure - ACCOUNTS RECEIVABLE, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCOUNTSRECEIVABLENETDetails</Role>
      <ShortName>ACCOUNTS RECEIVABLE, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ACCOUNTSRECEIVABLENETTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9954502 - Disclosure - PREPAIDS AND OTHER CURRENT ASSETS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PREPAIDSANDOTHERCURRENTASSETSDetails</Role>
      <ShortName>PREPAIDS AND OTHER CURRENT ASSETS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/PREPAIDSANDOTHERCURRENTASSETSTables</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9954503 - Disclosure - PROPERTY AND EQUIPMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PROPERTYANDEQUIPMENTDetails</Role>
      <ShortName>PROPERTY AND EQUIPMENT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/PROPERTYANDEQUIPMENTTables</ParentRole>
      <Position>71</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9954504 - Disclosure - PROPERTY AND EQUIPMENT - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/PROPERTYANDEQUIPMENTNarrativeDetails</Role>
      <ShortName>PROPERTY AND EQUIPMENT - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9954505 - Disclosure - INTANGIBLE ASSETS, NET - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTANGIBLEASSETSNETNarrativeDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9954506 - Disclosure - EQUITY SECURITIES - Summary of Equity Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESSummaryofEquitySecuritiesDetails</Role>
      <ShortName>EQUITY SECURITIES - Summary of Equity Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9954507 - Disclosure - EQUITY SECURITIES - Equity Securities Accounted Under Equity Method (ASC 323) And Ownership Interest (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESEquitySecuritiesAccountedUnderEquityMethodASC323AndOwnershipInterestDetails</Role>
      <ShortName>EQUITY SECURITIES - Equity Securities Accounted Under Equity Method (ASC 323) And Ownership Interest (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9954508 - Disclosure - EQUITY SECURITIES - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESNarrativeDetails</Role>
      <ShortName>EQUITY SECURITIES - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>9954509 - Disclosure - EQUITY SECURITIES - Net Gain (Loss) Recognized On Equity Method Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESNetGainLossRecognizedOnEquityMethodSecuritiesDetails</Role>
      <ShortName>EQUITY SECURITIES - Net Gain (Loss) Recognized On Equity Method Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>9954510 - Disclosure - EQUITY SECURITIES - Summarized Financial Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EQUITYSECURITIESSummarizedFinancialInformationDetails</Role>
      <ShortName>EQUITY SECURITIES - Summarized Financial Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>9954511 - Disclosure - OTHER LONG-TERM ASSETS, NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONGTERMASSETSNETDetails</Role>
      <ShortName>OTHER LONG-TERM ASSETS, NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/OTHERLONGTERMASSETSNETTables</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>9954512 - Disclosure - ACCRUED LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ACCRUEDLIABILITIESDetails</Role>
      <ShortName>ACCRUED LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ACCRUEDLIABILITIESTables</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>9954513 - Disclosure - BORROWINGS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/BORROWINGSDetails</Role>
      <ShortName>BORROWINGS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/BORROWINGSTables</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>9954514 - Disclosure - LEASES Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/LEASESAdditionalInformationDetails</Role>
      <ShortName>LEASES Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>9954515 - Disclosure - LEASES - Components of Lease Cost and Other Operating Lease Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/LEASESComponentsofLeaseCostandOtherOperatingLeaseInformationDetails</Role>
      <ShortName>LEASES - Components of Lease Cost and Other Operating Lease Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>9954516 - Disclosure - LEASES - Operating Lease Maturities and Future Minimum Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/LEASESOperatingLeaseMaturitiesandFutureMinimumPaymentsDetails</Role>
      <ShortName>LEASES - Operating Lease Maturities and Future Minimum Payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>9954517 - Disclosure - OTHER LONG-TERM LIABILITIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERLONGTERMLIABILITIESDetails</Role>
      <ShortName>OTHER LONG-TERM LIABILITIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/OTHERLONGTERMLIABILITIES</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>9954518 - Disclosure - STOCKHOLDERS' EQUITY - Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKHOLDERSEQUITYCommonStockDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>9954519 - Disclosure - STOCKHOLDERS' EQUITY - Preferred Stock Conversion (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKHOLDERSEQUITYPreferredStockConversionDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Preferred Stock Conversion (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>9954520 - Disclosure - STOCKHOLDERS' EQUITY - JonesTrading Sales Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKHOLDERSEQUITYJonesTradingSalesAgreementDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - JonesTrading Sales Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>9954521 - Disclosure - STOCKHOLDERS' EQUITY - Common and Preferred Stock Repurchase Program (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKHOLDERSEQUITYCommonandPreferredStockRepurchaseProgramDetails</Role>
      <ShortName>STOCKHOLDERS' EQUITY - Common and Preferred Stock Repurchase Program (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>9954522 - Disclosure - STOCK-BASED AWARDS - Stock-based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKBASEDAWARDSStockbasedCompensationExpenseDetails</Role>
      <ShortName>STOCK-BASED AWARDS - Stock-based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>9954523 - Disclosure - STOCK-BASED AWARDS - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKBASEDAWARDSAdditionalInformationDetails</Role>
      <ShortName>STOCK-BASED AWARDS - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>9954524 - Disclosure - STOCK-BASED AWARDS - Restricted Stock Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/STOCKBASEDAWARDSRestrictedStockActivityDetails</Role>
      <ShortName>STOCK-BASED AWARDS - Restricted Stock Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>9954525 - Disclosure - EMPLOYEE RETIREMENT PLAN (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/EMPLOYEERETIREMENTPLANDetails</Role>
      <ShortName>EMPLOYEE RETIREMENT PLAN (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/EMPLOYEERETIREMENTPLAN</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>9954526 - Disclosure - REVENUE AND CONTRACT LIABILITY - Unearned Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITYUnearnedRevenueDetails</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY - Unearned Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>9954527 - Disclosure - REVENUE AND CONTRACT LIABILITY - Deferred Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITYDeferredRevenueDetails</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY - Deferred Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>9954528 - Disclosure - REVENUE AND CONTRACT LIABILITY - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITYNarrativeDetails</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>96</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>9954529 - Disclosure - REVENUE AND CONTRACT LIABILITY - Sales Returns Allowance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/REVENUEANDCONTRACTLIABILITYSalesReturnsAllowanceDetails</Role>
      <ShortName>REVENUE AND CONTRACT LIABILITY - Sales Returns Allowance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>9954530 - Disclosure - INTEREST INCOME (EXPENSE), NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INTERESTINCOMEEXPENSENETDetails</Role>
      <ShortName>INTEREST INCOME (EXPENSE), NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/INTERESTINCOMEEXPENSENETTables</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>9954531 - Disclosure - OTHER INCOME (EXPENSE), NET (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/OTHERINCOMEEXPENSENETDetails</Role>
      <ShortName>OTHER INCOME (EXPENSE), NET (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/OTHERINCOMEEXPENSENETTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>9954532 - Disclosure - INCOME TAXES - Income Before Income Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESIncomeBeforeIncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES - Income Before Income Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>100</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>9954533 - Disclosure - INCOME TAXES - Provision (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESProvisionDetails</Role>
      <ShortName>INCOME TAXES - Provision (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>9954534 - Disclosure - INCOME TAXES - Effective Tax Rate Reconciliation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESEffectiveTaxRateReconciliationDetails</Role>
      <ShortName>INCOME TAXES - Effective Tax Rate Reconciliation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>9954535 - Disclosure - INCOME TAXES - Deferred Tax Assets And Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESDeferredTaxAssetsAndLiabilitiesDetails</Role>
      <ShortName>INCOME TAXES - Deferred Tax Assets And Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>103</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>9954536 - Disclosure - INCOME TAXES - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESAdditionalInformationDetails</Role>
      <ShortName>INCOME TAXES - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>104</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>9954537 - Disclosure - INCOME TAXES - Reconciliation of Tax Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/INCOMETAXESReconciliationofTaxContingenciesDetails</Role>
      <ShortName>INCOME TAXES - Reconciliation of Tax Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>105</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>9954538 - Disclosure - NET INCOME (LOSS) PER SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/NETINCOMELOSSPERSHAREDetails</Role>
      <ShortName>NET INCOME (LOSS) PER SHARE (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/NETINCOMELOSSPERSHARETables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>9954539 - Disclosure - NET INCOME (LOSS) PER SHARE - Income &amp; Earnings Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/NETINCOMELOSSPERSHAREIncomeEarningsPerShareDetails</Role>
      <ShortName>NET INCOME (LOSS) PER SHARE - Income &amp; Earnings Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/NETINCOMELOSSPERSHARETables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>9954540 - Disclosure - Schedule II Valuation and Qualifying Accounts (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.beyond.com/role/ScheduleIIValuationandQualifyingAccountsDetails</Role>
      <ShortName>Schedule II Valuation and Qualifying Accounts (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.beyond.com/role/ScheduleIIValuationandQualifyingAccounts</ParentRole>
      <Position>108</Position>
    </Report>
    <Report instance="byon-20231231.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9999.htm</HtmlFileName>
      <LongName>Uncategorized Items - byon-20231231.htm</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/role/uncategorizedFacts</Role>
      <ShortName>Uncategorized Items - byon-20231231.htm</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>109</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="byon-20231231.htm">byon-20231231.htm</File>
    <File>byon-20231231.xsd</File>
    <File>byon-20231231_cal.xml</File>
    <File>byon-20231231_def.xml</File>
    <File>byon-20231231_lab.xml</File>
    <File>byon-20231231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles>
    <File>byon-20231231_g1.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="1">http://fasb.org/srt/2023</BaseTaxonomy>
    <BaseTaxonomy items="1207">http://fasb.org/us-gaap/2023</BaseTaxonomy>
    <BaseTaxonomy items="38">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
    <BaseTaxonomy items="15">http://xbrl.sec.gov/ecd/2023</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
