CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net (loss) income	$ (85,276)	$ (29,365)	$ 58,037
(Loss) income from discontinued operations		(189)	85,319
Loss from continuing operations	(85,276)	(29,176)	(27,282)
Adjustments required to reconcile net (loss) income to net cash used in operating activities:
Share based compensation	337	988	1,802
Depreciation	1,920	1,983	2,370
Financial (income) expenses, net (mainly exchange differences)	(40)	13	124
Changes in accrued liability for employee rights upon retirement	(18)	10	59
(Gain) loss on amounts funded in respect of employee rights upon retirement	(21)	7	18
Loss (gain) on sale of fixed assets	6	(7)	(2)
Loss (gain) on extinguishment of convertible notes	1,325	(14,063)
Net income in connection with conversions of convertible notes	(116)
Change in fair value of convertible notes embedded derivative	38,061	6,473
Amortization of debt issuance costs and debt discount	2,334	568	445
Issuance of shares for interest payment in connection with conversions of convertible notes	2,391
Changes in operating assets and liabilities:
Increase (decrease) in deferred revenues (including non-current potion)	26,014	(411)	362
(Increase) decrease in accounts receivable and other assets	25	(1,133)	523
Decrease (increase) in inventories	(2,588)	522	(2,316)
Increase (decrease) in accounts payable and accruals	4,902	2,139	(1,873)
Increase in other long term liabilities	750
Net cash used in continuing operations	(9,994)	(32,087)	(25,770)
Net cash provided by (used in) discontinued operations		(11)	1,486
Net cash used in operating activities	(9,994)	(32,098)	(24,284)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(971)	(849)	(464)
Proceeds from sale of property and equipment	3	20	3
(Increase) decrease in restricted deposit	(146)	(106)	45
Amounts funded in respect of employee rights upon retirement, net	(5)	(32)	(96)
Net cash used in continuing operations	(1,119)	(967)	(512)
Net cash provided by discontinued operations			39,899
Net cash (used in) provided by investing activities	(1,119)	(967)	39,387
CASH FLOWS FROM FINANCING ACTIVITIES:
Net payment for conversion of convertible notes	(10,961)
Net proceeds from issuance of convertible notes	9,542	19,681
Issuance of shares, net of issuance cost			6,101
Exercise of options		14	534
Net cash (used in) provided by financing activities	(1,419)	19,695	6,635
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	414	277	(131)
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(12,118)	(13,093)	21,607
BALANCE OF CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	63,281	76,374	54,767
BALANCE OF CASH AND CASH EQUIVALENTS AT END OF YEAR	51,163	63,281	76,374
SUPPLEMENTARY INFORMATION ON INVESTING AND FINANCING ACTIVITIES NOT INVOLVING CASH FLOWS:
Purchase of property and equipment	526	595	489
Issuance of promissory note			4,301
Issuance of common stock, net of issuance cost		6,848
Convertible note conversions	16,263
SUPPLEMENTARY DISCLOSURE ON CASH FLOWS
Interest paid	$ 4,854	$ 3,659	$ 3,105