ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS - Assets and liabilities held for sale (Details)	3 Months Ended
	Mar. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($) property
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Number of real estate properties | property	0	4
Increase (decrease) in assets held for sale	$ 218,215
Property, Plant, and Equipment—Net	55,152,304	$ 71,470,583
Cash and Cash Equivalents	199,290	156,489
Other Assets	648,137	646,285
Operating Leases Right-of-Use Asset	173,561
Intangible Lease Assets—Net	3,346,288	4,366,858
Intangible Lease Liabilities—Net	(440,913)	(773,705)
Total Assets Held for Sale	59,078,667	75,866,510
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Accounts Payable	318,946	199,422
Accrued and Other Liabilities	916,759	924,323
Operating Leases - Liability	173,561
Deferred Revenue	232,719	223,551
Total Liabilities Held for Sale	1,641,985	1,347,296
Multi-Tenant Income Properties | Sarasota, FL | Whole Foods
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Increase (decrease) in assets held for sale	17,100,000
Held for sale - not discontinued operation | Multi-Tenant Income Properties
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Property, Plant, and Equipment—Net	51,492,601	67,810,880
Intangible Lease Assets—Net	3,346,288	4,366,858
Intangible Lease Liabilities—Net	(440,913)	(773,705)
Total Assets Held for Sale	54,397,976	71,404,033
Held for sale - discontinued operation | Golf Assets and Liabilities
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Property, Plant, and Equipment—Net	3,659,703	3,659,703
Cash and Cash Equivalents	199,290	156,489
Other Assets	648,137	646,285
Operating Leases Right-of-Use Asset	173,561
Total Assets Held for Sale	4,680,691	4,462,477
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Accounts Payable	318,946	199,422
Accrued and Other Liabilities	916,759	924,323
Operating Leases - Liability	173,561
Deferred Revenue	232,719	223,551
Total Liabilities Held for Sale	$ 1,641,985	$ 1,347,296