SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - COMMERCIAL LOAN INVESTMENTS AND ACCOUNTS RECEIVABLE (Details)	3 Months Ended
	Dec. 31, 2015 Transaction	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Accounts Receivable
Income Property Tenant Receivables		$ 627,691	$ 895,476
Number of closed land transactions | Transaction	2
Other Assets
Accounts Receivable
Income Property Tenant Receivables		628,000	895,000
Infrastructure Reimbursement Receivables and Other Receivables Related to Real Estate Operations		1,800,000	2,200,000
Golf Operations Receivables		290,000	349,000
Allowance for doubtful accounts		185,000	0
Accounts receivable related to real estate operations		$ 1,800,000	$ 2,200,000