INTANGIBLES (Details)-K (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Intangible assets and liabilities
Net Carrying Amount	$ 19,663,000	$ 20,002,000
Amortization/accretion of intangible assets and liabilities	1,800,000	3,100,000	2,500,000
Estimated future amortization
2015	10,600,000
2016	7,600,000
2017	5,600,000
2018	3,700,000
2019	2,700,000
Thereafter	18,700,000
Leases, Acquired-in-Place [Member]
Intangible assets and liabilities
Gross Assets	39,634,000	14,633,000
Accumulated Amortization	(6,919,000)	(5,327,000)
Net Carrying Amount	32,715,000	9,306,000
Tenant Leases above Market [Member]
Intangible assets and liabilities
Gross Assets	5,342,000	1,596,000
Accumulated Amortization	(686,000)	(501,000)
Net Carrying Amount	4,656,000	1,095,000
Tenant Leases below Market [Member]
Intangible assets and liabilities
Gross Liability	(6,184,000)	(482,000)
Accumulated Accretion	296,000	150,000
Net Carrying Amount	(5,888,000)	(332,000)
Ground Leases above Market [Member]
Intangible assets and liabilities
Gross Liability	(3,545,000)	(3,546,000)
Accumulated Accretion	1,273,000	1,115,000
Net Carrying Amount	(2,272,000)	(2,431,000)
Ground Leases below Market [Member]
Intangible assets and liabilities
Gross Assets	23,096,000	23,096,000
Accumulated Amortization	(3,433,000)	(3,094,000)
Net Carrying Amount	$ 19,663,000	$ 20,002,000