ASSETS HELD FOR SALE AND DISCONTINUED OPERATIONS - Assets and Liabilities Held for Sale (Details)	3 Months Ended	12 Months Ended
	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($) property	Dec. 31, 2018 USD ($) property
Assets held for sale
Number of real estate properties | property		34
Increase (decrease) in assets held for sale		$ (3,892,476)
Property, Plant, and Equipment—Net			$ 71,470,583
Land and Development Costs			20,139,788
Cash and Cash Equivalents			156,489
Restricted Cash			831,966
Other Assets			646,285
Intangible Lease Assets—Net			4,366,858
Intangible Lease Liabilities—Net			(773,705)
Total Assets Held for Sale		833,167	96,838,264
Liabilities held for sale
Accounts Payable			199,422
Accrued and Other Liabilities		924,323	924,323
Deferred Revenue			1,054,871
Total Liabilities Held for Sale		831,320	2,178,616
Disposal Group, Disposed of by Sale, Not Discontinued Operations
Assets held for sale
Increase (decrease) in assets held for sale		(56,800,000)
Disposal Group, Held-for-sale, Not Discontinued Operations
Assets held for sale
Increase (decrease) in assets held for sale	$ (14,600,000)
Land JV Assets | Disposal Group, Held-for-sale, Not Discontinued Operations
Assets held for sale
Land and Development Costs			20,139,788
Restricted Cash			831,966
Total Assets Held for Sale			20,971,754
Land JV Liabilities | Disposal Group, Held-for-sale, Not Discontinued Operations
Liabilities held for sale
Deferred Revenue			831,320
Total Liabilities Held for Sale			$ 831,320
Multi-Tenant Income Properties
Assets held for sale
Number of real estate properties | property			4
Multi-Tenant Income Properties | Disposal Group, Held-for-sale, Not Discontinued Operations
Assets held for sale
Property, Plant, and Equipment—Net			$ 67,810,880
Intangible Lease Assets—Net			4,366,858
Intangible Lease Liabilities—Net			(773,705)
Total Assets Held for Sale			71,404,033
Golf Operations | Discontinued Operations, Held-for-sale
Assets held for sale
Increase (decrease) in assets held for sale		208,000
Property, Plant, and Equipment—Net			3,659,703
Cash and Cash Equivalents			156,489
Other Assets			646,285
Total Assets Held for Sale			4,462,477
Liabilities held for sale
Accounts Payable			199,422
Accrued and Other Liabilities			924,323
Deferred Revenue			223,551
Total Liabilities Held for Sale			$ 1,347,296
Golf Operations | Disposal Group, Disposed of by Sale, Not Discontinued Operations
Assets held for sale
Total Assets Held for Sale		0
Liabilities held for sale
Total Liabilities Held for Sale		$ 0