BUSINESS COMBINATIONS AND ACQUIRED INTANGIBLES (Details) (USD $)	3 Months Ended		6 Months Ended						12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Ridge Creek Distribution Center III and Colorado Crossing Distribution Center [Domain]	Jun. 30, 2014 Ridge Creek Distribution Center III and Colorado Crossing Distribution Center [Domain] Leases, Acquired-in-Place [Member]	Jun. 30, 2014 Ridge Creek Distribution Center III and Colorado Crossing Distribution Center [Domain] Below market lease [Member]	Jun. 30, 2014 Ridge Creek Distribution Center III and Colorado Crossing Distribution Center [Domain] Above Market Leases [Member]	Dec. 31, 2013 Northfield Distribution Center and Interchange Park II [Domain]	Dec. 31, 2013 Northfield Distribution Center and Interchange Park II [Domain] Leases, Acquired-in-Place [Member]	Dec. 31, 2013 Northfield Distribution Center and Interchange Park II [Domain] Below market lease [Member]	Dec. 31, 2013 Northfield Distribution Center and Interchange Park II [Domain] Above Market Leases [Member]
Business Acquisition [Line Items]
Amortization expense for lease intangibles	$ 1,121,000	$ 999,000	$ 2,333,000	$ 1,777,000
Above and below market leases Increase (decrease) rental Income	89,000	27,000	176,000	(10,000)
Total cost of properties purchased					41,751,000				72,397,000
Amount of total cost allocated to real estate properties					37,964,000				65,387,000
Amount of total cost allocated to land					7,061,000				13,218,000
Intangible acquired associated with purchase of Real Estate						4,660,000	877,000	4,000		8,399,000	1,547,000	158,000
Acquisition-related costs expensed	$ 160,000	$ 138,000	$ 160,000	$ 167,000