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RELATED PARTY TRANSACTIONS - Joint Venture Partners and Affiliates (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Unconsolidated Joint Ventures
RELATED PARTY TRANSACTIONS
Aggregate management fees paid to other partners	$ 117,000	$ 169,000	$ 175,000
Decrease in equity earnings, joint venture transaction	59,000	85,000	88,000
Brokerage commission paid to unconsolidated joint venture partner	64,000
Joint Venture Partners and Affiliates
RELATED PARTY TRANSACTIONS
Property management costs allocated to real estate expenses annually	$ 82,000	$ 107,000	$ 143,000

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- Definition

Aggregate management fees paid to other partners of the venture.

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- Definition

The amount of brokerage commissions paid to an unconsolidated joint venture partner.

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- Definition

Reduction of equity in earnings of unconsolidated joint ventures on the consolidated statement of income.

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- Definition

Represents the amount of property management costs allocated to real estate expenses annually.

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Line items represent financial 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.

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