INVESTMENT SECURITIES (Narrative) (Details) (USD $)	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013 Equity Securities [Member] Resource Real Estate Diversified Income Fund [Member]	Sep. 30, 2013 Equity Securities [Member] The Bancorp, Inc. [Member]	Sep. 30, 2013 CDO Securities [Member] Issuer	Sep. 30, 2012 CDO Securities [Member]	Dec. 31, 2012 CDO Securities [Member] Issuer	Sep. 30, 2013 CDO Securities [Member] Apidos CLO II [Member]
CDO securities [Abstract]
Number of CDO issuers that represent the retained equity interest							8		5
Minimum investment requirement										$ 2,000,000.0
Equity Securities [Abstract]
Number of shares held (in shares)					10,000	18,972
Payments to Acquire Investments					100,000
Trading Securities [Abstract]
Realized gain on trading securities	2,800,000		4,600,000
Unrealized gain on trading securities	289,000	933,000	774,000	1,108,000
Other-than-Temporary Impairment Losses [Abstract]
Other-than-temporary impairment on investments			$ 214,000	$ 74,000			$ 214,000	$ 74,000