Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Research and development expenses, net	$ 10,210	$ 8,638	$ 4,089
Marketing and sales expenses	1,350	987	1,015
General and administrative expenses	3,469	3,696	3,753
Operating loss	15,029	13,321	8,857
Equity in net loss (gain) of an affiliated company	839	2,905	(156)
Financial expenses (income), net	(429)	(1,569)	7,241
Net Loss	$ 15,439	$ 14,657	$ 15,942
Basic and diluted loss per share (in USD) (in Dollars per share)	$ (0.10)	$ (0.12)	$ (0.17)
Weighted average number of shares outstanding used in computing basic and diluted loss per share - in thousands (in Shares)	149,534	120,612	94,401

The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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