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MORTGAGE AND OTHER NOTES RECEIVABLE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Mortgage and Other Notes Receivable [Line Items]
Percentage of assignment of the partnership interest	100.00%
Mortgage and other notes receivable balance, fully collectible	$ 8,945	$ 16,803
Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	5,418	5,680
Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 3,527	$ 11,123
Columbia Place Outparcel
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	5.00%	5.00%
Columbia Place Outparcel | Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 302	$ 321
One Park Place
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	5.00%	5.00%
One Park Place | Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 1,010	$ 1,194
Village Square
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	4.00%	3.75%
Village Square | Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 1,596	$ 1,644
Interest rate in one year (as a percent)	4.00%
Other | Minimum
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	4.07%	3.27%
Other | Maximum
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	9.50%	9.50%
Other | Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 2,510	$ 2,521
ERMC
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	4.00%	4.00%
ERMC | Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 2,855	$ 3,500
Horizon Group
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	0.00%	7.00%
Horizon Group | Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 0	$ 300
RED Development Inc. (4)
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	0.00%	5.00%
RED Development Inc. (4) | Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 0	$ 6,588
Woodstock land
Mortgage and Other Notes Receivable [Line Items]
Interest Rate	5.00%	5.00%
Woodstock land | Notes Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 672	$ 735
The Promenade, D'Iberville, MS | Mortgage Receivable
Mortgage and Other Notes Receivable [Line Items]
Mortgage and other notes receivable balance, fully collectible	$ 1,100

X

- Definition

Mortgage and Other Notes Receivable [Line Items]

+ References

No definition available.

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Mortgage Loans on Real Estate, Interest Rate in One Year

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- Definition

Percentage of assignment of the partnership interest in the real estate.

+ References

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The stated interest rate on the mortgage loan receivable or the weighted average interest rate on a group of loans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29)
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 10
-Section S99
-Paragraph 6
-Subparagraph (SX 210.5-04.(c) Schedule IV)
-URI http://asc.fasb.org/extlink&oid=27047687&loc=d3e5864-122674

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Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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