SUBSEQUENT EVENTS (Details) (USD $)	1 Months Ended		6 Months Ended	1 Months Ended
	Jul. 22, 2013 Interchange Park II Acquisition [Member] sqft	Jul. 22, 2013 Orlando Land Sale [Member]	Jun. 30, 2013 $100 Million Private Placement Unsecured Debt To Be Obtained [Member]	Jul. 22, 2013 Common stock issued during period [Member]	Jul. 22, 2013 Horizon I [Member] Development starts during period [Member] sqft	Jul. 22, 2013 Ten West Crossing 4 [Member] Development starts during period [Member] sqft
Subsequent Event [Line Items]
Property acquired square feet	49,000
Total cost of properties purchased	$ 2,400,000
Size of property sold (acres)		2.2
Proceeds from Sale of Property, Plant, and Equipment		1,400,000
Anticipated Proceeds from Issuance of Unsecured Notes			100,000,000
Square Footage of Real Estate Property					109,000	68,000
Projected total cost of development property					7,700,000	4,800,000
Unsecured Note Instrument, Interest Rate Terms			3.80%
Principal Payment Due August 30, 2020			30,000,000
Principal Payment Due August 30, 2023			50,000,000
Principal Payment Due August 30, 2025			20,000,000
Common stock issued during period, shares				138,208
Common stock issued during period, average sales price per share				$ 57.07
Common stock issued during period, net proceeds to company				$ 7,800,000
Common stock remaining to sell under program				812,899