CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net loss	$ (6,274)	$ (5,556)
Adjustments required to reconcile net loss to net cash used in operating activities:
Stock-based compensation	208	91
Depreciation	131	85
Accrued severance pay, net	15	(4)
Amortization of discount on loan	3	3
Revaluation of fair value of warrants to purchase Convertible Preferred Shares		(40)
Increase in other accounts receivable and prepaid expenses	(34)	(132)
Decrease in deferred revenues	(375)
Increase (decrease) in trade payables	106	(184)
Increase in other accounts payable and accrued expenses	331	831
Net cash used in operating activities	(5,889)	(4,906)
Cash flows from investing activities:
Proceeds from maturity of investment in restricted cash	191	176
Purchase of property and equipment	(634)	(204)
Net cash used in investing activities	(443)	(28)
Cash flows from financing activities:
Proceeds from issuance of Ordinary Shares, net of issuance costs upon IPO		36,250
Proceeds from issuance of convertible preferred shares		11,406
Repayment of loan	(141)	(141)
Proceeds from exercise of options into Ordinary Shares		145
Net cash (used in) provided by financing activities	(141)	47,660
Net increase (decrease) in cash and cash equivalents	(6,473)	42,726
Cash and cash equivalents at the beginning of the period	31,851	6,167
Cash and cash equivalents at the end of the period	25,378	48,893
Supplemental disclosure of non-cash investing and financing activities:
Purchase of property and equipment	161	184
Conversion of Convertible Preferred Shares into Ordinary Shares		5,945
Conversion of Warrants to purchase Convertible Preferred Shares into Ordinary Shares		47,075
Non-cash deferred IPO costs		1,463
Conversion of Warrants to purchase Convertible Preferred Shares into Warrants to purchase Ordinary Shares		87
Cash paid during the year:
Interest	3	10
Taxes on income	$ 203	$ 182