SHARE CAPITAL: (Tables)

6 Months Ended

Jun. 30, 2019

Stockholders' Equity Note [Abstract]

Schedule of options and RSUs granted to employees, directors and non-employees

In the six months ended June 30, 2019 and 2018, the Company granted options and RSUs as follows:

	Six months ended June 30, 2019
	Award amount	Exercise price range	Vesting period	Expiration
Employees:
Options	1,030,236	$2.66-$3.81	4 years	10 years
RSUs	274,628	-	4 years	-
Directors:
Options	247,060	$2.66	1 years	10 years
RSUs	140,976	-	1 years	-

	Six months ended June 30, 2018
	Award amount	Exercise price range	Vesting period	Expiration
Employees:
Options	571,530	$5.06-$6.40	4 years	10 years
RSUs	126,844	-	4 years	-
Directors:
Options	174,373	$5.02-$5.06	1 years	10 years
RSUs	14,829	-	3 years	-

Schedule of underlying data used for computing the fair value of the options

The fair value of options granted was computed, as of the grant date, using the Black-Scholes model. The underlying data used for computing the fair value of the options are as follows:

	Six months ended June 30
	2019			2018
Value of ordinary share	$	2.66-$3.83		$	5.12-$5.99
Dividend yield		0	%		0	%
Expected volatility		60.40%-61.40	%		62.10%-62.60	%
Risk-free interest rate		2.20%-2.62	%		2.75%-2.84	%
Expected term	6 years			6 years

Schedule of share-based compensation

The following table illustrates the effect of share-based compensation on the statements of operations:

	Six months ended June 30				Three months ended June 30
	2019		2018		2019		2018
Research and development expenses	$	738	$	1,303	$	384	$	412
Selling, general and administrative		1,599		1,651		1,004		788
	$	2,337	$	2,954	$	1,388	$	1,200