CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS (Fees From Unconsolidated Investment Entities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 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	$ 105	$ 410	$ 605	$ 1,500
Real estate [Member]
Related Party Transaction [Line Items]
Fees from unconsolidated investment entities	8,992	6,726	26,436	16,273
Discounts recorded	38	56	112	169
Financial fund management [Member]
Related Party Transaction [Line Items]
Fees from unconsolidated investment entities	794	801	2,861	2,335
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	211	295	836	979
RRE Opportunity REIT I [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	641	204	1,556	605
Dividends paid	30	28	88	85
RRE Opportunity REIT II [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	642	0	1,590	0
LEAF [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	31	53	95	168
Payment for sub-servicing the commercial finance investment partnerships	(52)	(197)	(253)	(743)
Payment for rent and related costs	0	(144)	0	(543)
1845 Walnut Associates Ltd. [Member]
Related Party Transaction [Line Items]
Payment for rent and operating expenses	(154)	(286)	(561)	(476)
Property management fees	56	32	149	149
Brandywine Construction & Management, Inc. [Member]
Related Party Transaction [Line Items]
Payment for property management of hotel property	(57)	(54)	(169)	(167)
Atlas Energy, L.P. [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	52	49	124	243
Ledgewood P.C. [Member]
Related Party Transaction [Line Items]
Payment for legal services	(98)	(76)	(165)	(180)
Graphic Images, LLC [Member]
Related Party Transaction [Line Items]
Payment for printing services	(27)	(20)	(116)	(59)
The Bancorp, Inc. [Member]
Related Party Transaction [Line Items]
Reimbursement of related party costs	29	29	84	85
9 Henmar LLC [Member]
Related Party Transaction [Line Items]
Payment of broker/consulting fees	$ (3)	$ (4)	$ (21)	$ (24)