REAL ESTATE (Operating Leases) (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Leased Assets [Line Items]
Deferred rent recognized	$ 600	$ 1,400	$ 800
Deferred rent receivables	2,900	2,800
Incentive to lessee	200	200
Bad debt expense	0	344	152
Office Revenue
Operating Leased Assets [Line Items]
Revenue adjustments	9
Office Expense
Operating Leased Assets [Line Items]
Bad debt expense	100	300	$ 200
Other Liabilities
Operating Leased Assets [Line Items]
Security deposit liability	$ 1,100	$ 1,300
Maximum
Operating Leased Assets [Line Items]
Operating lease, term	8 years 8 months 12 days
Weighted Average
Operating Leased Assets [Line Items]
Operating lease, term	3 years 3 months 18 days