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SIGNIFICANT ACCOUNTING POLICIES (Changes in capital deficiency) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Significant Accounting Policies [Line Items]
Net loss for the six months ended June 30, 2018	$ (8,462)	$ 450	$ (15,701)	$ (58,698)
Balance	(42,742)	(20,668)	(42,742)	(20,668)
Accumulated Deficit [Member]
Significant Accounting Policies [Line Items]
Net loss for the six months ended June 30, 2018			(15,701)	(58,698)
Balance	(311,797)	$ (271,354)	(311,797)	$ (271,354)
Previously Reported [Member]
Significant Accounting Policies [Line Items]
Net loss for the six months ended June 30, 2018	(11,294)		(20,694)
Balance	(49,571)		(49,571)
Previously Reported [Member] | Accumulated Deficit [Member]
Significant Accounting Policies [Line Items]
Balance	(318,626)		(318,626)
Restatement Adjustment [Member]
Significant Accounting Policies [Line Items]
Net loss for the six months ended June 30, 2018	2,832		4,993
Balance	6,829		6,829
Restatement Adjustment [Member] | Accumulated Deficit [Member]
Significant Accounting Policies [Line Items]
Balance	$ 6,829		$ 6,829

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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