Basis of Presentation (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended		3 Months Ended		6 Months Ended
	May 30, 2013	May 23, 2013 item	Jun. 30, 2013 item	Jun. 30, 2012	Jun. 30, 2013 item	Jun. 30, 2012	Aug. 08, 2013 item
Basis of Presentation
Number of principal business units					3
Number of employees impacted			150
Number of employees							20
Number of individuals elected to the Board of Directors		5
Period for which each member was elected to the Board of Directors		1 year
Reverse stock split ratio	0.05
Expenses
Compensation expense			$ 2,117	$ 3,247	$ 4,640	$ 6,180
Professional fees			3,088	3,050	5,598	5,348
Occupancy expense			458	399	765	774
Communications and data processing			288	522	694	1,045
Other			409	885	1,203	1,547
Total expenses			6,360	8,103	12,900	14,894
Restructuring expenses			43,627		46,086
Other items reclassified from continuing operations
Revenues
Interest income - Intersegment allocation				1,521	778	3,454
Expenses
Compensation expense			867	2,206	2,387	4,234
Professional fees			(206)	301	182	1,158
Occupancy expense			837	364	1,428	643
Goodwill impairment				21,096		21,096
Communications and data processing			173	124	338	358
Other			121	225	278	459
Total expenses			1,792	24,316	4,613	27,948
Expenses, net of revenues			1,792	22,795	3,835	24,494
Other items reclassified from continuing operations | Intangible asset impairment
Expenses
Restructuring expenses			$ 3,300		$ 3,900