ADOPTION OF ASU NO. 2016-02, LEASES (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets, net	$ 0
Operating lease liabiliites	$ 277
Weighted-average remaining lease term (in years)	8 years
Weighted-average discount rate	14.50%
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets, net		$ 15,400
Operating lease liabiliites		$ 15,400