SUPPLEMENTAL INFORMATION - NET LOSS AND WEIGHTED AVERAGE NUMBER OF SHARES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net loss	$ 23,205	$ 25,869
Net loss available to shareholders of Ordinary shares	$ 23,205	$ 25,869
Denominator:
Weighted average number of Ordinary Shares used in computing basic and diluted net loss per share	24,421,288	16,253,975