SUBSEQUENT EVENTS (Details) (Subsequent Event [Member], USD $)	3 Months Ended				0 Months Ended
	Apr. 30, 2014 Isanti [Member] acre	Apr. 30, 2014 Fruitland [Member] acre sqft	Apr. 30, 2014 Maple Grove [Member]	Apr. 30, 2014 Edina [Member]	Mar. 04, 2014 Preferred Class A [Member]	Mar. 04, 2014 Preferred Class B [Member]	Mar. 04, 2014 Common Shares and Limited Partnership Units [Member]
Subsequent Event [Line Items]
Quarterly amount per share or unit					$ 0.5156	$ 0.4968	$ 0.13
Record date					Mar. 17, 2014	Mar. 17, 2014	Mar. 17, 2014
Payment					Mar. 31, 2014	Mar. 31, 2014	Apr. 01, 2014
Closed Acquisitions [Abstract]
Parcel of vacant land acquired (in acres)	4.7	2.3
Cash paid for acquisition	$ 50,000	$ 7,100,000
Square footage of the property acquired ( in sq-ft)		39,000
Pending Dispositions [Abstract]
Sale amount of pending disposition			$ 7,200,000	$ 3,100,000