SIGNIFICANT ACCOUNTING POLICIES (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net loss	$ (7,239)	$ (59,148)
Increase in contracts liability	18	1,088
Net cash used in operating activities	(9,413)	$ (8,426)
Previously Reported [Member]
Cash flows from operating activities:
Net loss	(9,400)
Increase in contracts liability	2,179
Net cash used in operating activities	(9,413)
Restatement Adjustment [Member]
Cash flows from operating activities:
Net loss	2,161
Increase in contracts liability	(2,161)
Net cash used in operating activities	$ 0