INCOME TAXES (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax [Line Items]
Provision for income tax
Accrued interest and penalties related to uncertain tax positions	0	0
Recognized interest and penalties related to uncertain tax positions	$ 0	$ 0
U.S. statutory rate	34.00%	34.00%
Domestic Tax Authority [Member]
Income Tax [Line Items]
Net change in the valuation allowance	$ 6,100	$ 3,100
Net operating loss carry forwards	$ 172,000
Expiration date of operating loss carry forward	Dec. 31, 2032
Foreign Tax Authority [Member]
Income Tax [Line Items]
Net change in the valuation allowance	$ 6,800	$ 2,700
Net operating loss carry forwards	$ 61,700
Expiration date of operating loss carry forward		Dec. 31, 2021
State and Local Jurisdiction [Member]
Income Tax [Line Items]
Open tax years	2010