LOANS HELD FOR INVESTMENT (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended			12 Months Ended		3 Months Ended		3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Weighted Average	Dec. 31, 2012 Weighted Average	Mar. 31, 2013 Senior mortgage loans	Mar. 31, 2013 Senior mortgage loans Weighted Average	Mar. 31, 2013 Subordinated and mezzanine loans	Mar. 31, 2013 Subordinated and mezzanine loans Weighted Average
Loans held for investment
Carrying Amount	$ 409,943				$ 342,766		$ 67,177
Outstanding Principal	412,993				345,343		67,650
Interest Rate (as a percent)			6.30%			5.90%		8.30%
Unleveraged Effective Yield (as a percent)	7.00%		7.00%	7.40%		6.50%		10.90%
Remaining Life			2 years 7 months 6 days			2 years 7 months 6 days		2 years 6 months
Change in the activity of loan portfolio
Balance at the beginning of the period	353,500				342,766		67,177
Initial funding	50,999
Receipt of origination fee, net of costs	(539)
Additional funding	(5,300)
Amortizing payments	(56)
Origination fee accretion	739	57
Balance at the end of the period	$ 409,943				$ 342,766		$ 67,177