Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Cash flows used in operating activities:
Net loss		$ (8,587)	$ (12,124)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		173	229
Share-based compensation to employees and non-employees		633	1,819
Deferred taxes		(51)	(13)
Changes in assets and liabilities:
Trade receivables, net		341	(777)
Prepaid expenses, operating lease right-of-use assets and other assets		(632)	261
Inventories		(421)	627
Trade payables		399	652
Employees and payroll accruals		(12)	22
Deferred revenues and advances from customers		202	290
Other liabilities		(1)	(54)
Net cash used in operating activities		(7,956)	(9,068)
Cash flows used in investing activities:
Purchase of property and equipment			(3)
Net cash used in investing activities			(3)
Cash flows from financing activities:
Repayment of long term loan		(821)	(2,271)
Issuance of ordinary shares in at-the-market offering, net of issuance expenses paid in the amount of $109	[1]		1,150
Issuance of ordinary shares in investment agreement, net of issuance expenses in an amount of $300	[1]		4,700
Issuance of ordinary shares in "best efforts" offering, net of issuance expenses in the amount of $686	[1]	3,684
Issuance of ordinary shares in a "registered direct" offerings, net of issuance expenses in the amount of $1,035	[1]	8,215
Issuance of ordinary shares in a "warrant exercise" agreement, net of issuance expenses in the amount of $ 1,019	[1]	9,966
Exercise of pre-funded warrants and warrants	[1],[2]	1,429
Net cash provided by financing activities		22,473	3,579
Increase (decrease) in cash, cash equivalents, and restricted cash		14,517	(5,492)
Cash, cash equivalents, and restricted cash at beginning of period		10,347	15,423
Cash, cash equivalents, and restricted cash at end of period		24,864	9,931
Supplemental disclosures of non-cash flow information
At-the-market offering expenses not yet paid	[1]		89
Investment agreement issuance cost not yet paid	[1]		405
"Registered direct" offerings issuance cost not yet paid	[1]	90
Classification of inventory to property and equipment, net			148
Cashless exercise of pre-funded warrants	[1],[2]	72
Initial recognition of operating lease right-of-use assets		2,099
Initial recognition of operating lease liabilities		(2,249)
Supplemental cash flow information:
Cash and cash equivalents		24,054	9,094
Restricted cash included in other long term assets		810	837
Total Cash, cash equivalents, and restricted cash		$ 24,864	$ 9,931

[1] See Note 7f to the condensed consolidated financial statements.

[2] See Note 7d to the condensed consolidated financial statements.