Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 48,893	$ 6,167
Restricted cash	850	1,026
Other accounts receivable and prepaid expenses	283	151
Total current assets	50,026	7,344
Property and equipment, net	1,680	1,374
Deferred IPO costs		1,463
Severance pay fund	105	99
Long-term lease deposit	46	46
Total assets	51,857	10,326
Current liabilities
Current maturity of loan	563	563
Trade payables	1,977	1,991
Other accounts payable and accrued expenses	2,588	1,793
Total current liabilities	5,128	4,347
Loan	82	219
Accrued severance pay	134	132
Warrants to purchase Convertible Preferred Shares		6,072
Other accounts payable	260	208
Total liabilities	5,604	10,978
COMMITMENTS AND CONTINGENT LIABILITIES
CONVERTIBLE PREFERRED SHARES:
Series A1-E Preferred Shares of NIS 0.01 par value. Authorized: 8,060,923 and 0 at December 31, 2014 and March 31, 2015 respectively. Issued and outstanding: 5,895,657 and 0 at December 31, 2014 and March 31, 2015 respectively. Aggregate liquidation preference of $46,694 and 0 at December 31, 2014 and March 31, 2015 respectively		35,669
STOCKHOLDERS' EQUITY (DEFICIT)
Ordinary shares of NIS 0.01 par value. Authorized: 30,689,077 and 50,000,000 at December 31, 2014 and March 31, 2015 respectively. Issued and outstanding: 502,224 and 13,415,703 at December 31, 2014 and March 31, 2015 respectively	34	1
Additional paid-in capital	90,105	2,008
Accumulated deficit	(43,886)	(38,330)
Total shareholders' equity (deficit)	46,253	(36,321)
Total liabilities, and shareholders' equity (deficit)	$ 51,857	$ 10,326