Derivative Warrants Liabilities (Tables)

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of weighted average of inputs

Weighted average of inputs	As of December 31,
	2018			2017
Share price	$	0.33		$	0.80
Exercise price	$	1.02		$	1.10
Expected volatility		73.7	%		98	%
Risk-free interest		0.48	%		0.11	%
Dividend yield		0	%		0	%
Expected life of up to (years)		0.16			0.82

Summary of outstanding and exercisable

Issuance Date	Outstanding and Exercisable as of December 31, 2018		Exercise Price Per Share	Exercisable Through
Series A (Mar-2016) (10B(a))		--	NIS 3 ($0.86)	August 2017
Series B (Mar-2016) (10B(a))		9,752,984	NIS 4 ($1.53)	February 2019
Series A (May-2016) (10B(b))		--	NIS 3 ($0.86)	November 2017
Series B (May-2016) (10B(b))		2,028,568	NIS 4 ($1.53)	May 2019
Series E (Oct-2016) (10B(c))		2,687,197	NIS 3 ($0.86)	October 2019

Summary of liabilities measured on recurring basis

	Series A (Mar-2016)			Series B (Mar-2016)			Series A (May-2016)			Series B (May-2016)			Series E (Oct-2016)			Total
As of December 31, 2016		3			16			3			17			92			131
Exercised		(7,792	)		(1,734	)		(327	)		--			(387	)		(10,240	)
Revaluation of warrants		7,789			2,772			324			321			974			12,180
As of December 31, 2017		--			1,054			--			338			679			2,071
Revaluation of warrants		--			(1,054	)		--			(338	)		(679	)		(2,071	)
As of December 31, 2018		--			--			--			--			--			--