DEFERRED REVENUE - Rent Paid in Advance (Details) - USD ($)				3 Months Ended		12 Months Ended
	Feb. 21, 2018	Oct. 11, 2017	Sep. 20, 2017	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2011
Deferred revenue
Rent payment received		$ 807,000
Period over which rent received in advance is recognized		12 months
Acquisition of Property, Plant, and Equipment and Intangible Lease Assets and Liabilities				$ 27,916,784	$ 23,557,356
Master tenant funded incurred related to property acquisition from their leasing reserve escrow	$ 2,250,000			935,000
Aggregate contributions related to total acquisition cost will be recognized into income property rental revenue over the remaining term of the lease				29,000,000
Oil exploration
Deferred revenue
Lease term			13 years
Aspen, Colorado
Deferred revenue
Tenant Contributions	1,500,000			1,500,000
Acquisition of Property, Plant, and Equipment and Intangible Lease Assets and Liabilities	$ 28,000,000
Florida
Deferred revenue
Tenant Contributions				1,900,000
Maximum | Oil exploration
Deferred revenue
Lease term		13 years				8 years
Buc'ees - East of I-95
Deferred revenue
Escrow reserve				831,000
Remaining gain to be recognized				$ 831,000