FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Financial Assets:
Cash and Cash Equivalents, at Carrying Value	$ 323	$ 8	$ 207	$ 1,258
Escrow deposits for 1031 exchange	7,553	0
Carrying Amount [Member]
Financial Assets:
Cash and Cash Equivalents, at Carrying Value	323	8
Escrow deposits for 1031 exchange	7,553	0
Mortgage loans receivable, net of discount	8,760	8,870
Interest rate swap assets	1,361	1,692
Financial Liabilities:
Secured debt	456,511	499,793
Unsecured debt	380,000	305,000
Unsecured bank credit facilities	84,520	88,952
Interest rate swap liabilities	1,601	244
Fair Value [Member]
Financial Assets:
Cash and Cash Equivalents, Fair Value Disclosure	323	8
Escrow deposits for 1031 exchange	7,553	0
Mortgage loans receivable, net of discount	8,968	9,040
Interest rate swap assets	1,361	1,692
Financial Liabilities:
Secured debt	482,341	519,390
Unsecured debt	377,918	294,860
Unsecured bank credit facilities	84,753	89,140
Interest rate swap liabilities	$ 1,601	$ 244