Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019		Sep. 30, 2018
Cash flows used in operating activities:
Net loss		$ (11,976)		$ (16,657)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation		242		351
Share-based compensation to employees and non-employees		869		2,342
Deferred taxes		(67)		(13)
Financial expenses related to long term loan				133
Changes in assets and liabilities:
Trade receivables, net		186		(83)
Prepaid expenses, operating lease right-of-use assets and other assets		(397)		189
Inventories		(828)		1,171
Trade payables		625		491
Employees and payroll accruals		(56)		(202)
Deferred revenues and advances from customers		180		192
Other liabilities		(3)		(88)
Net cash used in operating activities		(11,225)		(12,174)
Cash flows used in investing activities:
Purchase of property and equipment		(8)		(3)
Net cash used in investing activities		(8)		(3)
Cash flows from financing activities:
Repayment of long term loan		(1,261)		(3,063)
Issuance of ordinary shares in at-the-market offering, net of issuance expenses paid in the amount of $123	[1]			1,229
Issuance of ordinary shares in investment agreement, net of issuance expenses in an amount of $343	[1]			4,657
Issuance of ordinary shares in a "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		22,033		2,823
Increase (decrease) in cash, cash equivalents, and restricted cash		10,800		(9,354)
Cash, cash equivalents, and restricted cash at beginning of period		10,347		15,423
Cash, cash equivalents, and restricted cash at end of period		21,147		6,069
Supplemental disclosures of non-cash flow information
At-the-market offering expenses not yet paid	[1]			114
Investment agreement issuance cost not yet paid	[1]			362
"Registered direct" offerings issuance cost not yet paid		90	[1]
Classification of other current assets to property and equipment, net				236
Classification of inventory to property and equipment, net		88
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		20,410		5,230
Restricted cash included in other long term assets		737		839
Total Cash, cash equivalents, and restricted cash		$ 21,147		$ 6,069

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

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