LAND AND SUBSURFACE INTERESTS - Daytona Beach (Details)	6 Months Ended		12 Months Ended
	Jun. 30, 2019 USD ($) a	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($) a
Land and subsurface interests
Acquisition of property		$ 2,141,853
Land Parcel with Structures Beach Property
Land and subsurface interests
Acres of land | a			5
Acquisition of property			$ 2,000,000
Contiguous Parcels Beach Property
Land and subsurface interests
Acres of land | a	1
Acquisition of property	$ 2,100,000
Opportunity Zone and Community Redevelopment Area Beach Property
Land and subsurface interests
Acres of land | a	6
Accrued demolition and entitlement costs	$ 700,000