CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (26,457)	$ (83,440)	$ (29,365)
Loss from discontinued operations			(189)
Loss from continuing operations	(26,457)	(83,440)	(29,176)
Adjustments required to reconcile net loss to net cash used in operating activities:
Share based compensation	514	337	988
Depreciation	1,671	1,920	1,983
Financial expenses (income), net (mainly exchange differences)	20	(40)	13
Changes in accrued liability for employee rights upon retirement	(18)	(18)	10
(Gain) loss on amounts funded in respect of employee rights upon retirement	(46)	(21)	7
Loss (gain) on sale of fixed assets		6	(7)
Loss (gain) on extinguishment of convertible notes		1,325	(14,063)
Net loss (income) in connection with convertible notes	213	(116)
Change in fair value of convertible notes embedded derivative		38,061	6,473
Amortization of debt issuance costs and debt discount	2,602	2,334	568
Issuance of shares for interest payment in connection with conversions of convertible notes	234	2,391
Changes in operating assets and liabilities:
Increase (decrease) in contract liability (including non-current portion)	17,880	24,178	(411)
(Increase) decrease in accounts receivable and other assets	(3,099)	25	(1,133)
Decrease (increase) in inventories	(736)	(2,588)	522
Increase (decrease) in accounts payable and accruals	(761)	4,902	2,139
Increase in other long term liabilities	241	750
Net cash used in continuing operations	(7,742)	(9,994)	(32,087)
Net cash used in discontinued operations			(11)
Net cash used in operating activities	(7,742)	(9,994)	(32,098)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(686)	(971)	(849)
Proceeds from sale of property and equipment		3	20
(Increase) decrease in restricted deposit	62	(146)	(106)
Amounts funded in respect of employee rights upon retirement, net	33	(5)	(32)
Net cash used in investing activities	(591)	(1,119)	(967)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net payment for convertible notes	(4,752)	(10,961)
Net proceeds from issuance of convertible notes		9,542	19,681
Exercise of options	0	0	14
Net cash (used in) provided by financing activities	(4,752)	(1,419)	19,695
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(270)	414	277
NET DECREASE IN CASH AND CASH EQUIVALENTS	(13,355)	(12,118)	(13,093)
BALANCE OF CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	51,163	63,281	76,374
BALANCE OF CASH AND CASH EQUIVALENTS AT END OF YEAR	37,808	51,163	63,281
SUPPLEMENTARY INFORMATION ON INVESTING AND FINANCING ACTIVITIES NOT INVOLVING CASH FLOWS:
Purchase of property and equipment	225	526	595
Issuance of common stock, net of issuance cost			6,848
Convertible note conversions	2,285	16,263
SUPPLEMENTARY DISCLOSURE ON CASH FLOWS
Interest paid	$ 4,585	$ 4,854	$ 3,659