LAND AND SUBSURFACE INTERESTS - Summary of Sales within the Tomoka Town Center (Details)	3 Months Ended					9 Months Ended		24 Months Ended
	Sep. 30, 2017 USD ($) a	Jun. 30, 2017 USD ($) a	Mar. 31, 2017 USD ($) a	Sep. 30, 2016 USD ($) a	Mar. 31, 2016 a	Sep. 30, 2017 USD ($) a	Sep. 30, 2016 USD ($) a	Dec. 31, 2016 USD ($) a	Oct. 30, 2017 ft²	Nov. 30, 2016 ft²
Land and Subsurface Interests
Land Sales | $	$ 0	$ 10,858,000	$ 28,707,000			$ 39,565,000
Gross Sales Price | $	12,380,602			$ 12,210,945		$ 73,931,669	$ 43,439,318
Acres sold		81.43	1,587.35	4.5	7.5	1,668.78	12.0
Infrastructure Reimbursement Receivables | $	2,381,038					$ 2,381,038		$ 3,844,236
Tomoka Town Center
Land and Subsurface Interests
Infrastructure Reimbursement Receivables | $	$ 2,400,000					$ 2,400,000
Tomoka Town Center | Land
Land and Subsurface Interests
Acres	235					235
Tomoka Town Center | Developable land
Land and Subsurface Interests
Acres	180					180
Tanger Outlets
Land and Subsurface Interests
Area of real estate property | ft²										350,000
NADG retail power center
Land and Subsurface Interests
Area of real estate property | ft²									500,000
Tomoka Town Center Sales Agreements | Tomoka Town Center
Land and Subsurface Interests
Gross Sales Price | $								$ 21,400,000
Acres sold								99
Third NADG Land Sale | Tomoka Town Center
Land and Subsurface Interests
Acres sold						19
NADG Contract | Tomoka Town Center | Developable land
Land and Subsurface Interests
Acres	62					62