RELATED PARTY MANAGEMENT SERVICES BUSINESS - Summary of Amounts Due (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Management Agreement PINE
Real Estate [Line Items]
Management Services Fee due from PINE	$ 649,000	$ 254,000
Dividend receivable	395,000	71,000
Other	(13,000)	56,000
Total	1,031,000	$ 381,000
Member Units
Real Estate [Line Items]
Dividend receivable	316,000
Common Stock
Real Estate [Line Items]
Dividend receivable	$ 79,000

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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