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BASIS OF PRESENTATION, LIQUIDITY (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash and Cash Equivalents [Line Items]
Net loss	$ (20,657)	$ (30,264)	$ (22,721)
Net cash outflows from operations	11,636	15,612	1,915
Cash and cash equivalents	77,050	77,824	$ 107,773	$ 179,584
Accumulated deficit	1,226,943	1,206,286
Subsidiaries [Member] | CHINA [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 19,800	$ 14,500

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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