BUSINESS COMBINATIONS AND ACQUIRED INTANGIBLES (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	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	$ 1,212,000	$ 778,000
Above and below market leases Increase (decrease) rental Income	87,000	(37,000)
Total cost of properties purchased			72,397,000
Amount of total cost allocated to real estate properties			65,387,000
Amount of total cost allocated to land			13,218,000
Intangible acquired associated with purchase of Real Estate				8,399,000	1,547,000	158,000
Acquisition-related costs expensed	$ 0	$ 29,000