INCOME TAXES Federal Statutory Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Provision for (benefit from) continuing operations at Federal statutory rate of 35%	$ (2,867)	$ 787	$ (6,281)
State income taxes, net of Federal income tax effect	(7)	11	(357)
Change in valuation allowance	(5,045)	447	(3,427)
Taxes related to foreign income	8,901	2,140	5,628
Effect of state tax rate changes on deferred tax assets	0	(6,834)	0
Others	399	1,375	2,446
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(639)	2,720	(168)
Provision for (benefit from) income taxes	$ 742	$ 646	$ (2,159)