Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 8,569	$ (907)	$ 12,005	$ (1,977)
Other comprehensive loss:
Change in cumulative translation adjustment	71	4	(8)	(20)
Other comprehensive loss, net of tax	71	4	(8)	(20)
Total comprehensive income (loss)	8,640	(903)	11,997	(1,997)
Comprehensive income (loss) attributable to noncontrolling interests	(95)	(130)	659	134
Comprehensive income (loss) attributable to B. Riley Financial, Inc.	$ 8,735	$ (773)	$ 11,338	$ (2,131)