COMMERCIAL LOAN INVESTMENTS - Summary of Commercial Loan Investments (Details) - USD ($)			12 Months Ended
	Jul. 05, 2019	Jun. 14, 2019	Dec. 31, 2019	Oct. 17, 2019	Dec. 31, 2017	Dec. 31, 2016
Mortgage Loans On Real Estate [Line Items]
Original Face Amount			$ 34,570,000
Current Face Amount			34,570,000
Carrying Value			34,625,173		$ 11,925,699	$ 23,960,467
First Mortgage, 72-Acre Land Parcel, Orlando, FL
Mortgage Loans On Real Estate [Line Items]
Original Face Amount		$ 8,000,000	8,000,000
Current Face Amount			8,000,000
Carrying Value			$ 7,927,869
Interest rate (as a percent)		12.00%	12.00%
Mortgage Note, 400 Josephine Street, Austin, TX
Mortgage Loans On Real Estate [Line Items]
Original Face Amount	$ 8,300,000		$ 8,250,000
Current Face Amount			8,250,000
Carrying Value			$ 8,207,964
Interest rate (as a percent)	11.50%		11.50%
LPGA Buyer Loan - Daytona Beach, FL
Mortgage Loans On Real Estate [Line Items]
Original Face Amount			$ 2,070,000	$ 2,100,000
Current Face Amount			2,070,000
Carrying Value			$ 2,045,398
Interest rate (as a percent)			7.50%
Carpenter Hotel-400 Josephine Street, Austin, TX
Mortgage Loans On Real Estate [Line Items]
Original Face Amount	$ 16,250,000		$ 16,250,000
Current Face Amount			16,250,000
Carrying Value			$ 16,443,942