CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
CURRENT ASSETS:
Cash and cash equivalents	$ 127,460	$ 36,999
Short-term investments		36,001
Restricted deposit	197	198
Accounts receivable	4
Inventory	349	316
Prepaid expenses and other current assets	726	958
TOTAL CURRENT ASSETS	128,736	74,472
NON-CURRENT ASSETS
Property and equipment, net	637	805
Restricted deposit	29	29
Other non-current assets		244
TOTAL ASSETS	129,402	75,550
CURRENT LIABILITIES:
Accounts payable and accrued expenses	4,048	4,435
Employee related accrued expenses	1,291	1,950
Deferred revenues	196	650
TOTAL CURRENT LIABILITIES	5,535	7,035
TOTAL LIABILITIES	5,535	7,035
SHAREHOLDERS’ EQUITY:
Ordinary shares, NIS 0.01 par value; 100,000,000 shares authorized at March 31, 2018 and December 31, 2017; 15,473,981 and 13,751,390 shares issued and outstanding at March 31, 2018 and December 31, 2017, respectively	42	37
Additional paid-in capital	184,421	115,692
Accumulated deficit	(60,596)	(47,214)
TOTAL SHAREHOLDERS’ EQUITY	123,867	68,515
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 129,402	$ 75,550

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.