DEFERRED REVENUE - Summary of Deferred Revenue (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
DEFERRED REVENUE
Deferred Oil Exploration Lease Revenue	$ 386,767	$ 585,675
Deferred Revenue on Land Sales	831,320
Prepaid Rent	1,004,206	1,126,408
Tenant Contributions	4,312,578
Other Deferred Revenue	301,616	318,376
Total Deferred Revenue	$ 6,836,487	$ 2,030,459