CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net loss		$ (18,555)	$ (23,959)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		516	503
Share-based compensation to employees and non- employees		2,597	2,458
Deferred taxes		(20)	(64)
Loss on extinguishment of debt		313	0
Financial expenses related to long term loan		87	495
Changes in assets and liabilities:
Trade receivables, net		(11)	1,202
Prepaid expenses and other current and long term assets		(556)	(804)
Inventories		(381)	(1,004)
Trade payables		(1,048)	960
Employees and payroll accruals		(161)	(285)
Deferred revenues and advances from customers		45	116
Other current and long term liabilities		102	182
Net cash used in operating activities		(17,072)	(20,200)
Cash flows from investing activities:
Purchase of property and equipment		(19)	(408)
Net cash used in investing activities		(19)	(408)
Cash flows from financing activities:
Issuance of ordinary shares upon exercise of options to purchase ordinary shares by employees and non-employees		28	23
Proceeds from long term loan		0	12,000
Debt issuance cost		0	(441)
Repayment of long term loan		(2,747)	(554)
Issuance of ordinary shares in at-the-market offering, net of issuance expenses paid in the amount of 389$	[1]	9,060	4,110
Net cash provided by financing activities		6,341	15,138
Decrease in cash and cash equivalents		(10,750)	(5,470)
Cash and cash equivalents at beginning of period		23,678	17,869
Cash and cash equivalents at end of period		12,928	12,399
Supplemental disclosures of non-cash flow information
At-the-market offering expenses not yet paid		50	11
Classification of inventory to property and equipment, net		$ 145	$ 113

[1] (1) See Note 8e to the condensed consolidated financial statements.