NET CAPITAL REQUIREMENTS	6 Months Ended
Jun. 30, 2017
Brokers and Dealers [Abstract]
NET CAPITAL REQUIREMENTS	NOTE 13— NET CAPITAL REQUIREMENTS B. Riley & Co., LLC (“BRC”), FBRCM and MLV, the Company’s broker-dealer subsidiaries, are registered with the SEC as broker-dealers and are members of the Financial Industry Regulatory Authority, Inc. (“FINRA”). As such, they are subject to the minimum net capital requirements promulgated by the SEC. As of June 30, 2017, BRC had net capital of $9,082, which was $8,740 in excess of its required net capital of $342, FBRCM had net capital of $37,755, which was $36,755 in excess of its required net capital of $1,000, and MLV had net capital of $411, which was $311 in excess of its required net capital of $100.

The entire disclosure for financial services, specifically for brokers and dealers, for the accounting period and at the balance sheet date. Disclosure may include amounts receivable from and payable to broker-dealers and clearing organizations, including securities failed to receive, deposits received for securities loaned, amounts payable to clearing organizations related to open transactions, floor brokerage payables and payables for commodities futures accounts liquidating to an equity balance on a broker-dealer's records. May also include disclosure on company's consolidation policy and a note indicating the amount of the broker-dealer's actual net capital and the amount of required net capital.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-URI http://asc.fasb.org/topic&trid=2176223

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