Mortgage Notes Receivable (Details) (USD $)	12 Months Ended				0 Months Ended	12 Months Ended					6 Months Ended		12 Months Ended
	Dec. 31, 2011 loan		Dec. 31, 2010 loan	Dec. 31, 2009	Aug. 04, 2006 Second Mortgage On Hotel In San Jose, CA [Member]	Dec. 31, 2011 Second Mortgage On Hotel In San Jose, CA [Member] loan		Dec. 31, 2010 Second Mortgage On Hotel In San Jose, CA [Member]	Dec. 31, 2011 First Mortgage [Member]	Dec. 31, 2010 First Mortgage [Member]	Dec. 31, 2011 Mortgage loan on a shopping center and an adjacent commercial building in Norwalk ,CT [Member]		Dec. 31, 2011 Mortgage loan on a shopping center and an adjacent commercial building in Norwalk ,CT [Member]		Jun. 30, 2011 Mortgage loan on a shopping center and an adjacent commercial building in Norwalk ,CT [Member]	Jun. 29, 2011 Mortgage loan on a shopping center and an adjacent commercial building in Norwalk ,CT [Member]
Mortgage Loans on Real Estate [Line Items]
Mortgage Loans on Real Estate, Number of Loans	5		4			1
Mortgage Loans on Real Estate, Carrying Amount of Mortgages	$ 55,967,000	[1]	$ 44,813,000			$ 11,252,000	[2]		$ 44,700,000	$ 33,000,000	$ 11,715,000	[3]	$ 11,715,000	[3]
Principal balance of first mortgage loan	58,867,000					14,200,000	[2]	15,000,000			11,715,000	[3]	11,715,000	[3]	11,900,000
Allowance for Loan and Lease Losses, Real Estate						2,900,000		3,200,000
Mortgage Loans, Weighted Average Interest Rate	9.20%		9.90%		14.00%	9.00%					6.00%		6.00%
Mortgage loan carrying balance																18,300,000
Maturity date of first mortgage loan											Jun. 30, 2014
Extension Option Period											1 year
Cash received as part of refinancing															8,700,000
Mortgage Loan Fair Value															11,900,000
Discontinued operations - gain on deconsolidation of VIE	$ 2,026,000		$ 0	$ 0									$ 2,026,000

[1] For Federal tax purposes, the aggregate tax basis is approximately $58.9 million as of December 31, 2011.

[2] This note was amended on August 4, 2006. The amended note decreased the interest from 14% to 9% per annum, and requires monthly payments of principal and interest based on 15-year amortization schedule.

[3] The loan is subject to a one year extension option with an interest rate of 7% .