Segment Reporting (Detail) - Schedule of net revenues, expenses, and total assets by segment (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Dec. 31, 2011
Total revenues	$ 6,721	$ 15,898	$ 32,165	$ 43,243
Expenses	15,798	26,447	39,264	54,081
Operating income (loss)	(9,077)	(10,549)	(7,099)	(10,838)
Segment assets	28,169	78,400	28,169	78,400	38,826
Capital Markets [Member]
Total revenues	6,400	15,900	36,600	42,700
Expenses	12,600	25,300	33,400	52,100
Operating income (loss)	(6,200)	(9,400)	3,200	(9,400)
Segment assets	20,800	68,500	20,800	68,500
Direct Markets [Member]
Total revenues	400	0	700	0
Expenses	2,200	0	4,100	0
Operating income (loss)	(1,800)	0	(3,400)	0
Segment assets	2,800	0	2,800	0
Merchant Banking [Member]
Total revenues	(100)	0	(5,100)	500
Expenses	1,000	1,100	1,800	1,900
Operating income (loss)	(1,100)	(1,100)	(6,900)	(1,400)
Segment assets	$ 4,600	$ 9,900	$ 4,600	$ 9,900

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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DIRECT MARKETS HOLDINGS CORP. 10-Q