COMMITMENTS AND CONTINGENCIES - Other Matters (Details)		3 Months Ended			15 Months Ended	18 Months Ended
	Jun. 30, 2016 USD ($)	Mar. 31, 2017 USD ($) a	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($) a	Mar. 31, 2017 USD ($) a	Mar. 31, 2017 USD ($) a	Dec. 31, 2016 USD ($)
Contingencies
Restoration cost accrual		$ 1,367,256			$ 1,367,256	$ 1,367,256	$ 1,505,757
Unfavorable regulatory action
Contingencies
Accrued loss contingency				$ 187,500
Acres | a		54.66			54.66	54.66
Single institutional shareholder allegations
Contingencies
Cost incurred		$ 936,000				$ 2,400,000
Legal representation and third party costs		$ 563,000
Land Sales | Minto Communities LLC
Contingencies
Acres | a		1,581			1,581	1,581
Minimum
Contingencies
Acres | a		8,200			8,200	8,200
Wetlands restoration
Contingencies
Estimated cost	$ 2,000,000	$ 2,000,000	$ 2,000,000
Accrued restoration cost		1,000,000		$ 1,700,000	$ 1,000,000	$ 1,000,000
Acres | a				148.4
Increase in accrual of restoration Costs			$ 300,000
Environmental costs funded		1,000,000			1,000,000
Wetlands restoration | Minto Communities LLC
Contingencies
Escrow deposit		423,000			$ 423,000	$ 423,000
Wetlands restoration | Minimum
Contingencies
Estimated cost				$ 1,700,000
Wetlands restoration | Maximum
Contingencies
Estimated cost				$ 1,900,000
Mitigation activities
Contingencies
Cost of infrastructure improvements		$ 0