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INVESTMENT IN UNCONSOLIDATED JOINT VENTURES (Details)	1 Months Ended		12 Months Ended
	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($) item	Dec. 31, 2014 USD ($)
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Investment in unconsolidated joint ventures				$ 12,686,000
Investment in unconsolidated joint ventures			$ 10,833,000	$ 11,350,000
Number of unconsolidated joint ventures | item			5	5
Number of properties owned and operated by each unconsolidated joint venture | item			1	1
Equity in earnings of unconsolidated joint ventures			$ 1,005,000	$ 412,000	$ 533,000
Retail center located in Manahawkin, New Jersey
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Percentage of equity method investments acquired	50.00%
Investment in unconsolidated joint ventures	$ 43,500,000		$ 8,385,000
Debt financed	$ 26,100,000
Annual fixed interest rate (as a percent)	4.00%
Unconsolidated joint ventures | Shopko retail stores, Lincoln, Nebraska
INVESTMENT IN UNCONSOLIDATED JOINT VENTURES
Percentage of equity method investments acquired		50.00%
Investment in unconsolidated joint ventures		$ 6,300,000

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Contractual interest rate for funds borrowed, under the debt agreement.

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