FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Financial Assets:
Cash and cash equivalents	$ 1,027		$ 174
Carrying Amount [Member]
Financial Assets:
Cash and cash equivalents	1,027	[1]	174	[1]
Mortgage loans receivable, net of discount	4,114	[1]	4,110	[1]
Financial Liabilities:
Mortgage notes payable	613,797	[1]	628,170	[1]
Unsecured term loan payable	130,000	[1]	50,000	[1]
Notes payable to banks	46,451	[1]	154,516	[1]
Derivative Financial Instruments, Liabilities, Fair Value Disclosure	871	[1]	0	[1]
Fair Value [Member]
Financial Assets:
Cash and cash equivalents	1,027		174
Mortgage loans receivable, net of discount	4,356		4,317
Financial Liabilities:
Mortgage notes payable	670,753		674,462
Unsecured term loan payable	130,803		50,000
Notes payable to banks	46,409		153,521
Derivative Financial Instruments, Liabilities, Fair Value Disclosure	$ 871		$ 0

[1] Carrying amounts shown in the table are included in the Consolidated Balance Sheets under the indicated captions, except as explained in the notes below.