FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011	Dec. 31, 2010
Financial Assets [Abstract]
Cash and Cash Equivalents	$ 8		$ 1,258		$ 174	$ 137
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Financial Assets [Abstract]
Cash and Cash Equivalents	8	[1]	1,258	[1]
Mortgage loans receivable, net of discount	8,870	[1]	9,323	[1]
Interest Rate Swap Assets	1,692	[1]	0	[1]
Financial Liabilities [Abstract]
Secured debt	499,793	[1]	607,766	[1]
Unsecured debt	305,000	[1]	130,000	[1]
Unsecured bank credit facilities	88,952	[1]	76,160	[1]
Interest rate swap liabilities	244	[1]	645	[1]
Estimate of Fair Value, Fair Value Disclosure [Member]
Financial Assets [Abstract]
Cash and cash equivalents	8		1,258
Mortgage loans receivable, net of discount	9,040		9,748
Interest Rate Swap Assets	1,692		0
Financial Liabilities [Abstract]
Secured debt	519,390		661,408
Unsecured debt	294,860		130,776
Unsecured bank credit facilities	89,140		76,160
Interest rate swap liabilities	$ 244		$ 645

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