COMMITMENTS AND CONTINGENCIES COMMITMENTS AND CONTINGENCIES - (Details Textuals) $ in Thousands			3 Months Ended		6 Months Ended	12 Months Ended
	Oct. 02, 2017	Apr. 20, 2017	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 a
Commitments and Contingencies [Line Items]
Recovery of credit losses			$ 0	$ 66
Intercreditor Agreement Claim [Member]
Commitments and Contingencies [Line Items]
Amount sought by third party			300
11333, Inc. Claim [Member]
Commitments and Contingencies [Line Items]
Amount sought by third party			1,200
Hotel [Member] | MacArthur Loan [Member] | MacArthur Place [Member]
Commitments and Contingencies [Line Items]
Debt Instrument, Repayment Guaranty	50.00%
Well Repair [Member]
Commitments and Contingencies [Line Items]
Contractual Obligation			2,500		$ 2,500
Development Costs, Period Cost			900		$ 1,800
Mortgage Receivable [Member]
Commitments and Contingencies [Line Items]
Discount on loans acquired			$ 13,100
Annual interest rate of loans acquired			8.50%
Mortgage Loans, Borrower Equity Requirement			$ 9,700
Preferred Interests [Member] | L’Auberge Fund Manager, LLC [Member]
Commitments and Contingencies [Line Items]
Capital Transaction, Percent of Gross Proceeds, Selling Commissions						6.00%
Capital Transaction, Percent of Gross Proceeds, Expense Reimbursement Broker-Dealer						1.00%
Fund Expense Reimbursements			100
Fund Commissions			$ 100
Pending Litigation [Member] | RNMA I [Member]
Commitments and Contingencies [Line Items]
Loss Contingency, Damages Sought		3.1
NEW MEXICO | Pending Litigation [Member] | Maniatis [Member]
Commitments and Contingencies [Line Items]
Area of Land | a						7,000
TEXAS | Pending Litigation [Member]
Commitments and Contingencies [Line Items]
Area of Land | a						111