Discontinued Operations (Details 1) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Real estate properties (certain assets held in variable interest entity):
Cash and cash equivalents	$ 8,938,000	$ 10,538,000	$ 3,555,000	$ 1,067,000
Liabilities of variable interest entity held for sale:
Notes payable	52,600,000	52,800,000
Accounts payable and accrued liabilities	1,594,000	972,000
Variable Interest Entity, Primary Beneficiary [Member]
Real estate properties (certain assets held in variable interest entity):
Total assets	4,171,000	4,299,000
Liabilities of variable interest entity held for sale:
Loan payable	52,570,000	52,819,000
Liabilities of variable interest entity held for sale	2,796,000	2,769,000
Variable Interest Entity, Primary Beneficiary [Member] | Discontinued Operations [Member]
Real estate properties (certain assets held in variable interest entity):
Cash and cash equivalents	55,000	124,000
Investments in real estate, net	3,905,000	3,905,000
Accounts receivable, inventory and other assets	211,000	270,000
Total assets	4,171,000	4,299,000
Liabilities of variable interest entity held for sale:
Notes payable	1,332,000	1,332,000
Loan payable	157,000	219,000
Accounts payable and accrued liabilities	606,000	600,000
Intangible lease liabilities, net	145,000	145,000
Interest payable	556,000	473,000
Liabilities of variable interest entity held for sale	$ 2,796,000	$ 2,769,000