Line items represent reporting concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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REAL ESTATE DEBT SECURITIES (Schedule of Investments in Debt Securities) (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended		6 Months Ended		115 Months Ended
	Mar. 20, 2019	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Dec. 31, 2018
Investment [Line Items]
Outstanding Principal Balance		$ 0		$ 0		$ 0	$ 13,000
Redemptions of common stock		2,568	$ 110,461	5,107	$ 115,071	280,500
Point Trust LLC
Investment [Line Items]
Redemptions of common stock (in shares)	13,000
Redemptions of common stock (in dollars per shares)	$ 1,000
Redemptions of common stock	$ 8,600
Redemptions of common stock, accrued interest and exit fees	$ 900
Investment acquired (in shares)	210,000
Investment acquired (in dollars per shares)	$ 25
Point Trust LLC \| Series B Preferred Units
Investment [Line Items]
Redemptions of common stock (in shares)	13,000
Redemptions of common stock (in dollars per shares)	$ 1,000
Debt Securities
Investment [Line Items]
Outstanding Principal Balance		0		0		0
Book Value		0		0		0	10,859
Debt Securities \| Point Trust LLC \| Series B Preferred Units
Investment [Line Items]
Outstanding Principal Balance		0		0		0
Book Value		$ 0		$ 0		$ 0	$ 10,859