Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Cash flows used in operating activities:
Net loss		$ (4,000)	$ (6,327)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		94	113
Share-based compensation to employees and non- employees		319	796
Deferred taxes		(36)	(14)
Changes in assets and liabilities:
Trade receivables, net		(334)	(433)
Prepaid expenses, operating lease right-of-use assets and other assets		(240)	180
Inventories		(238)	134
Trade payables		238	409
Employees and payroll accruals		(56)	54
Deferred revenues and advances from customers		(25)	74
Other liabilities		25	(12)
Net cash used in operating activities		(4,253)	(5,026)
Cash flows from financing activities:
Repayment of long term loan		(401)	(1,115)
Issuance of ordinary shares in at-the-market offering, net of issuance expenses paid in the amount of $12	[1]		386
Issuance of ordinary shares in "best efforts" offering, net of issuance expenses in the amount of $496 (1)	[1]	3,874
Exercise of pre-funded warrants and warrants	[2]	107
Net cash provided by (used in) financing activities		3,580	(729)
Decrease in cash, cash equivalents, and restricted cash		(673)	(5,755)
Cash, cash equivalents, and restricted cash at beginning of period		10,347	15,423
Cash, cash equivalents, and restricted cash at end of period		9,674	9,668
Supplemental disclosures of non-cash flow information
Proceeds on account of ordinary shares in at-the-market offering not yet received			(42)
At-the-market offering expenses not yet paid			38
Investment agreement issuance cost not yet paid	[1]		615
"Best efforts" offering issuance cost not yet paid (1)	[1]	189
Classification of inventory to property and equipment, net			29
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		8,862	8,818
Restricted cash included in other long term assets		812	850
Total Cash, cash equivalents, and restricted cash		$ 9,674	$ 9,668

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

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