<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <Version>2.4.1.9</Version>
  <ProcessingTime />
  <ReportFormat>Html</ReportFormat>
  <ContextCount>261</ContextCount>
  <ElementCount>430</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>79</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
    </Report>
    <Report>
      <IsDefault>true</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsolidatedStatementsOfOperations</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - CONSOLIDATED STATEMENTS OF COMPHREHENSIVE INCOME (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsolidatedStatementsOfComphrehensiveIncomeLoss</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPHREHENSIVE INCOME (LOSS)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsolidatedStatementsOfEquityDeficit</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00000007 - Statement - CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsolidatedStatementsOfEquityDeficitParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) (Parenthetical)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00000008 - Statement - CONSOLDIATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/ConsoldiatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLDIATED STATEMENTS OF CASH FLOWS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00000009 - Disclosure - ORGANIZATION, BUSINESS OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/OrganizationBusinessOperationsAndSignificantAccountingPolicies</Role>
      <ShortName>ORGANIZATION, BUSINESS OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>00000010 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>00000011 - Disclosure - ACQUISITIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/Acquisitions</Role>
      <ShortName>ACQUISITIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>00000012 - Disclosure - RESTRUCTURING CHARGE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RestructuringCharge</Role>
      <ShortName>RESTRUCTURING CHARGE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>00000013 - Disclosure - ACCOUNTS RECEIVABLE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AccountsReceivable</Role>
      <ShortName>ACCOUNTS RECEIVABLE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>00000014 - Disclosure - GOODS HELD FOR SALE OR AUCTION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodsHeldForSaleOrAuction</Role>
      <ShortName>GOODS HELD FOR SALE OR AUCTION</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>00000015 - Disclosure - PROPERTY AND EQUIPMENT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/PropertyAndEquipment</Role>
      <ShortName>PROPERTY AND EQUIPMENT</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>00000016 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodwillAndOtherIntangibleAssets</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>00000017 - Disclosure - LEASING ARRANGEMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LeasingArrangements</Role>
      <ShortName>LEASING ARRANGEMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>00000018 - Disclosure - CREDIT FACILITIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/CreditFacilities</Role>
      <ShortName>CREDIT FACILITIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>00000019 - Disclosure - LONG-TERM DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/Long-termDebt</Role>
      <ShortName>LONG-TERM DEBT</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>00000020 - Disclosure - NOTES PAYABLE</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://brileyfin.com/role/NotesPayable</Role>
      <ShortName>NOTES PAYABLE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>00000021 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/CommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>00000022 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>00000023 - Disclosure - EARNINGS PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/EarningsPerShare</Role>
      <ShortName>EARNINGS PER SHARE</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>00000024 - Disclosure - LIMITED LIABILITY COMPANY SUBSIDIARIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LimitedLiabilityCompanySubsidiaries</Role>
      <ShortName>LIMITED LIABILITY COMPANY SUBSIDIARIES</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>00000025 - Disclosure - BENEFIT PLANS AND DIVIDENDS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BenefitPlansAndDividends</Role>
      <ShortName>BENEFIT PLANS AND DIVIDENDS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>00000026 - Disclosure - NET CAPITAL REQUIREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/NetCapitalRequirements</Role>
      <ShortName>NET CAPITAL REQUIREMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>00000027 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>00000028 - Disclosure - BUSINESS SEGMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BusinessSegments</Role>
      <ShortName>BUSINESS SEGMENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>00000029 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SelectedQuarterlyFinancialData</Role>
      <ShortName>SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>00000030 - Disclosure - SUBSEQUENT EVENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SubsequentEvents</Role>
      <ShortName>SUBSEQUENT EVENTS</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>00000031 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>00000032 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesTables</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>00000033 - Disclosure - ACQUISITIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsTables</Role>
      <ShortName>ACQUISITIONS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>00000034 - Disclosure - RESTRUCTURING CHARGE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RestructuringChargeTables</Role>
      <ShortName>RESTRUCTURING CHARGE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>00000035 - Disclosure - ACCOUNTS RECEIVABLE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AccountsReceivableTables</Role>
      <ShortName>ACCOUNTS RECEIVABLE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>00000036 - Disclosure - GOODS HELD FOR SALE OR AUCTION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodsHeldForSaleOrAuctionTables</Role>
      <ShortName>GOODS HELD FOR SALE OR AUCTION (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>00000037 - Disclosure - PROPERTY AND EQUIPMENT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/PropertyAndEquipmentTables</Role>
      <ShortName>PROPERTY AND EQUIPMENT (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>00000038 - Disclosure - LEASING ARRANGEMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LeasingArrangementsTables</Role>
      <ShortName>LEASING ARRANGEMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>00000039 - Disclosure - LONG-TERM DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/Long-termDebtTables</Role>
      <ShortName>LONG-TERM DEBT (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>00000040 - Disclosure - INCOME TAXES (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxesTables</Role>
      <ShortName>INCOME TAXES (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>00000041 - Disclosure - EARNINGS PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/EarningsPerShareTables</Role>
      <ShortName>EARNINGS PER SHARE (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>00000042 - Disclosure - BUSINESS SEGMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BusinessSegmentsTables</Role>
      <ShortName>BUSINESS SEGMENTS (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>00000043 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SelectedQuarterlyFinancialDataTables</Role>
      <ShortName>SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>00000044 - Disclosure - ORGANIZATION, BUSINESS OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/OrganizationBusinessOperationsAndSignificantAccountingPoliciesDetailsTextual</Role>
      <ShortName>ORGANIZATION, BUSINESS OPERATIONS AND SIGNIFICANT ACCOUNTING POLICIES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>00000045 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesDetails</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>00000046 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesDetails1</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>00000047 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesDetails2</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>00000048 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesDetails3</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>00000049 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SummaryOfSignificantAccountingPoliciesDetailsTextual</Role>
      <ShortName>SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>00000050 - Disclosure - ACQUISITIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails</Role>
      <ShortName>ACQUISITIONS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>00000051 - Disclosure - ACQUISITIONS (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails1</Role>
      <ShortName>ACQUISITIONS (Details 1)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>00000052 - Disclosure - ACQUISITIONS (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails2</Role>
      <ShortName>ACQUISITIONS (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>00000053 - Disclosure - ACQUISITIONS (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails3</Role>
      <ShortName>ACQUISITIONS (Details 3)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>00000054 - Disclosure - ACQUISITIONS (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails4</Role>
      <ShortName>ACQUISITIONS (Details 4)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>00000055 - Disclosure - ACQUISITIONS (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetails5</Role>
      <ShortName>ACQUISITIONS (Details 5)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>00000056 - Disclosure - ACQUISITIONS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AcquisitionsDetailsTextual</Role>
      <ShortName>ACQUISITIONS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>00000057 - Disclosure - RESTRUCTURING CHARGE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RestructuringChargeDetails</Role>
      <ShortName>RESTRUCTURING CHARGE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>00000058 - Disclosure - RESTRUCTURING CHARGE (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RestructuringChargeDetailsTextual</Role>
      <ShortName>RESTRUCTURING CHARGE (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>00000059 - Disclosure - ACCOUNTS RECEIVABLE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AccountsReceivableDetails</Role>
      <ShortName>ACCOUNTS RECEIVABLE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>00000060 - Disclosure - ACCOUNTS RECEIVABLE (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AccountsReceivableDetails1</Role>
      <ShortName>ACCOUNTS RECEIVABLE (Details 1)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>00000061 - Disclosure - ACCOUNTS RECEIVABLE (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/AccountsReceivableDetailsTextual</Role>
      <ShortName>ACCOUNTS RECEIVABLE (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>00000062 - Disclosure - GOODS HELD FOR SALE OR AUCTION (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodsHeldForSaleOrAuctionDetails</Role>
      <ShortName>GOODS HELD FOR SALE OR AUCTION (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>00000063 - Disclosure - GOODS HELD FOR SALE OR AUCTION (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodsHeldForSaleOrAuctionDetailsTextual</Role>
      <ShortName>GOODS HELD FOR SALE OR AUCTION (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>00000064 - Disclosure - PROPERTY AND EQUIPMENT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/PropertyAndEquipmentDetails</Role>
      <ShortName>PROPERTY AND EQUIPMENT (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>00000065 - Disclosure - PROPERTY AND EQUIPMENT (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/PropertyAndEquipmentDetailsTextual</Role>
      <ShortName>PROPERTY AND EQUIPMENT (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>00000066 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/GoodwillAndOtherIntangibleAssetsDetailsTextual</Role>
      <ShortName>GOODWILL AND OTHER INTANGIBLE ASSETS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>00000067 - Disclosure - LEASING ARRANGEMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LeasingArrangementsDetails</Role>
      <ShortName>LEASING ARRANGEMENTS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>00000068 - Disclosure - LEASING ARRANGEMENTS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LeasingArrangementsDetailsTextual</Role>
      <ShortName>LEASING ARRANGEMENTS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>00000069 - Disclosure - CREDIT FACILITIES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/CreditFacilitiesDetailsTextual</Role>
      <ShortName>CREDIT FACILITIES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>00000070 - Disclosure - LONG-TERM DEBT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/Long-termDebtDetails</Role>
      <ShortName>LONG-TERM DEBT (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>00000071 - Disclosure - LONG-TERM DEBT (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/Long-termDebtDetailsTextual</Role>
      <ShortName>LONG-TERM DEBT (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>00000072 - Disclosure - NOTES PAYABLE (Details Textual)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://brileyfin.com/role/NotesPayableDetailsTextual</Role>
      <ShortName>NOTES PAYABLE (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>00000073 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/CommitmentsAndContingenciesDetailsTextual</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>00000074 - Disclosure - INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>00000075 - Disclosure - INCOME TAXES (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxesDetails1</Role>
      <ShortName>INCOME TAXES (Details 1)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>00000076 - Disclosure - INCOME TAXES (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxesDetails2</Role>
      <ShortName>INCOME TAXES (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>00000077 - Disclosure - INCOME TAXES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/IncomeTaxesDetailsTextual</Role>
      <ShortName>INCOME TAXES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>00000078 - Disclosure - EARNINGS PER SHARE (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/EarningsPerShareDetails</Role>
      <ShortName>EARNINGS PER SHARE (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>00000079 - Disclosure - EARNINGS PER SHARE (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/EarningsPerShareDetailsTextual</Role>
      <ShortName>EARNINGS PER SHARE (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>00000080 - Disclosure - LIMITED LIABILITY COMPANY SUBSIDIARIES (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/LimitedLiabilityCompanySubsidiariesDetailsTextual</Role>
      <ShortName>LIMITED LIABILITY COMPANY SUBSIDIARIES (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>00000081 - Disclosure - BENEFIT PLANS AND DIVIDENDS (Details Narrative()</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BenefitPlansAndDividendsDetailsNarrative</Role>
      <ShortName>BENEFIT PLANS AND DIVIDENDS (Details Narrative()</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>00000082 - Disclosure - RELATED PARTY TRANSACTIONS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/RelatedPartyTransactionsDetailsTextual</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>00000083 - Disclosure - NET CAPITAL REQUIREMENTS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/NetCapitalRequirementsDetailsTextual</Role>
      <ShortName>NET CAPITAL REQUIREMENTS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>00000084 - Disclosure - BUSINESS SEGMENTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BusinessSegmentsDetails</Role>
      <ShortName>BUSINESS SEGMENTS (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>00000085 - Disclosure - BUSINESS SEGMENTS (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BusinessSegmentsDetails1</Role>
      <ShortName>BUSINESS SEGMENTS (Details 1)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>00000086 - Disclosure - BUSINESS SEGMENTS (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/BusinessSegmentsDetails2</Role>
      <ShortName>BUSINESS SEGMENTS (Details 2)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>00000087 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SelectedQuarterlyFinancialDataDetails</Role>
      <ShortName>SELECTED QUARTERLY FINANCIAL DATA (Details)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>00000088 - Disclosure - SUBSEQUENT EVENTS (Details Textual)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://brileyfin.com/role/SubsequentEventsDetailsTextual</Role>
      <ShortName>SUBSEQUENT EVENTS (Details Textual)</ShortName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '1/1/2013 - 3/31/2013' is shorter (89 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '4/1/2013 - 6/30/2013' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '7/1/2013 - 9/30/2013' is shorter (91 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '10/1/2013 - 12/31/2013' is shorter (91 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '1/1/2014 - 3/31/2014' is shorter (89 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '4/1/2014 - 6/30/2014' is shorter (90 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '7/1/2014 - 9/30/2014' is shorter (91 days) and has only 1 values, so it is being removed.</Log>
    <Log type="Info">Columns in Cash Flows statement 'CONSOLDIATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 48 values. Shorter duration columns must have at least one fourth (12) as many values. Column '10/1/2014 - 12/31/2014' is shorter (91 days) and has only 2 values, so it is being removed.</Log>
    <Log type="Info">Process Flow-Through: 00000002 - Statement - CONSOLIDATED BALANCE SHEETS</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2012'</Log>
    <Log type="Info">	Process Flow-Through: Removing column 'Dec. 31, 2011'</Log>
    <Log type="Info">Process Flow-Through: 00000003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 00000004 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2013'</Log>
    <Log type="Info">Process Flow-Through: 00000005 - Statement - CONSOLIDATED STATEMENTS OF COMPHREHENSIVE INCOME (LOSS)</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2014'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Dec. 31, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Sep. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Jun. 30, 2013'</Log>
    <Log type="Info">	Process Flow-Through: Removing column '3 Months Ended
Mar. 31, 2013'</Log>
    <Log type="Info">Process Flow-Through: 00000007 - Statement - CONSOLIDATED STATEMENTS OF EQUITY (DEFICIT) (Parenthetical)</Log>
    <Log type="Info">Process Flow-Through: 00000008 - Statement - CONSOLDIATED STATEMENTS OF CASH FLOWS</Log>
  </Logs>
  <InputFiles>
    <File>rily-20141231.xml</File>
    <File>rily-20141231.xsd</File>
    <File>rily-20141231_cal.xml</File>
    <File>rily-20141231_def.xml</File>
    <File>rily-20141231_lab.xml</File>
    <File>rily-20141231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles />
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
