CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 51,163	$ 63,281
Accounts receivable - Trade	1,721	693
Other assets	1,934	2,648
Inventories	7,833	5,245
Total current assets	62,651	71,867
FUNDS IN RESPECT OF EMPLOYEE RIGHTS UPON RETIREMENT	1,887	1,677
PROPERTY AND EQUIPMENT, NET	7,676	8,703
Total assets	72,214	82,247
Accounts payable and accruals:
Trade	7,521	4,007
Other	9,310	7,496
Convertible notes	5,921	53,872
Deferred revenues		837
Total current liabilities	22,752	66,212
LONG TERM LIABILITIES:
Convertible notes	46,267	19,343
Deferred revenues	26,851
Liability for employee rights upon retirement	2,586	2,348
Other long term liabilities	5,051	4,301
Total long term liabilities	80,755	25,992
Total liabilities	103,507	92,204
COMMITMENTS (Note 6)
CAPITAL DEFICIENCY:
Common Stock, $0.001 par value: Authorized - as of December 31, 2016 and 2017, 250,000,000 shares; issued and outstanding, respectively - as of December 31, 2016 and 2017, 124,134,085 shares and 143,728,797 shares, respectively	144	124
Additional paid-in capital	266,495	202,575
Accumulated deficit	(297,932)	(212,656)
Total capital deficiency	(31,293)	(9,957)
Total liabilities net of capital deficiency	$ 72,214	$ 82,247