CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Fees From Unconsolidated Investment Entities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Commercial Finance, Four Investment Entities [Member]
Related Party Transaction [Line Items]
Amount waived of the fund management fees from commercial finance investment entities	$ 276	$ 483	$ 500	$ 1,100
Real estate [Member]
Related Party Transaction [Line Items]
Fees from unconsolidated investment entities	8,519	5,353	17,444	9,547
Discounts recorded	41	37	74	113
Financial fund management [Member]
Related Party Transaction [Line Items]
Fees from unconsolidated investment entities	1,265	786	2,067	1,534
Commercial Finance [Member]
Related Party Transaction [Line Items]
Fees from unconsolidated investment entities	0	0	0	0
CVC Credit Partners, L.P. [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	444	307	625	684
RRE Opportunity REIT I [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	564	197	915	401
Dividends paid	29	24	58	57
RRE Opportunity REIT II [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	446	0	948	0
LEAF [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	28	58	64	115
Payment for sub-servicing the commercial finance investment partnerships	(74)	(243)	(201)	(546)
Payment for rent and related costs	0	(200)	0	(399)
1845 Walnut Associates Ltd. [Member]
Related Party Transaction [Line Items]
Payment for rent and operating expenses	(203)	(33)	(407)	(190)
Property management fees	77	75	93	117
Brandywine Construction & Management, Inc. [Member]
Related Party Transaction [Line Items]
Payment for property management of hotel property	(72)	(70)	(112)	(113)
Atlas Energy, L.P. [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	42	53	72	194
Ledgewood P.C. [Member]
Related Party Transaction [Line Items]
Payment for legal services	(43)	(43)	(67)	(104)
Graphic Images, LLC [Member]
Related Party Transaction [Line Items]
Payment for printing services	(29)	(15)	(89)	(39)
The Bancorp, Inc. [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	28	28	55	56
9 Henmar LLC [Member]
Related Party Transaction [Line Items]
Payment of broker/consulting fees	$ (15)	$ (17)	$ (18)	$ (20)