RECENT ACCOUNTING PRONOUNCEMENTS Recent Accounting Pronouncements (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets - Office Leases	[1]	$ 2,332,000		$ 2,332,000			$ 0
Right of use assets - Ground leases (operating)	[2]	12,488,000		12,488,000			$ 0
Indirect leasing costs		103,000	$ 0	$ 196,000	$ 0
Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets - Office Leases						$ 2,376,000
Right of use assets - Ground leases (operating)						$ 10,226,000
Right of use asset and lease liability for ground leases and office leases, estimated percentage of Total assets				less than 1%
Atlanta office lease commencing in June 2019 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets - Office Leases		155,000		$ 155,000
Logistics Center 6 & 7 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use assets - Ground leases (operating)		$ 2,679,000		$ 2,679,000

[1] See Note 20 for information regarding the Company’s January 1, 2019, implementation of FASB ASC 842, Leases, and the Company’s right of use assets for office leases.

[2] See below and in Note 20 for information regarding the Company’s right of use assets for ground leases.