    <SEC-DOCUMENT>0001213900-23-085343-index.html : 20231109
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    <ACCEPTANCE-DATETIME>20231109172655
    ACCESSION NUMBER:		0001213900-23-085343
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		26
    CONFORMED PERIOD OF REPORT:	20231109
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20231109
    DATE AS OF CHANGE:		20231109

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			B. Riley Financial, Inc.
    		CENTRAL INDEX KEY:			0001464790
    		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
    		IRS NUMBER:				270223495
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-37503
    		FILM NUMBER:		231393910

    	BUSINESS ADDRESS:
    		STREET 1:		11100 SANTA MONICA BLVD
    		STREET 2:		SUITE 800
    		CITY:			LOS ANGELES
    		STATE:			CA
    		ZIP:			90025
    		BUSINESS PHONE:		818-884-3737

    	MAIL ADDRESS:
    		STREET 1:		11100 SANTA MONICA BLVD
    		STREET 2:		SUITE 800
    		CITY:			LOS ANGELES
    		STATE:			CA
    		ZIP:			90025

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	Great American Group, Inc.
    		DATE OF NAME CHANGE:	20090522
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>ea188036-8k_briley.htm
    <DESCRIPTION>CURRENT REPORT
    <TEXT>
    Document 1 - file: ea188036-8k_briley.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>ea188036ex99-1_briley.htm
    <DESCRIPTION>THIRD QUARTER 2023 SUPPLEMENTAL FINANCIAL DATA DATED NOVEMBER 9, 2023
    <TEXT>
    Document 2 - file: ea188036ex99-1_briley.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>rily-20231108.xsd
    <DESCRIPTION>XBRL SCHEMA FILE
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    <FILENAME>rily-20231108_lab.xml
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    <FILENAME>ex99_1-1.jpg
    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>8
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    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>9
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    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>10
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    <DESCRIPTION>GRAPHIC
    <TEXT>
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    <SEQUENCE>11
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    <DESCRIPTION>GRAPHIC
    <TEXT>
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    <SEQUENCE>12
    <FILENAME>ex99_1-6.jpg
    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>13
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    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>15
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    <SEQUENCE>16
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    <DESCRIPTION>GRAPHIC
    <TEXT>
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    <SEQUENCE>17
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    <DESCRIPTION>GRAPHIC
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    <SEQUENCE>18
    <FILENAME>ex99_1-12.jpg
    <DESCRIPTION>GRAPHIC
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    <TYPE>XML
    <SEQUENCE>19
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    <TEXT>
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    <TYPE>EXCEL
    <SEQUENCE>21
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    <TYPE>XML
    <SEQUENCE>22
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    <SEQUENCE>23
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    <TYPE>XML
    <SEQUENCE>24
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    <TYPE>JSON
    <SEQUENCE>26
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    <TEXT>
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    <TYPE>ZIP
    <SEQUENCE>27
    <FILENAME>0001213900-23-085343-xbrl.zip
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