Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,389)	$ (2,559)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	41	42
Change in liability for employees right upon retirement	11	(47)
Financial expenses	433	(488)
Share-based compensation expenses	38	263
Changes in operating asset and liability items:
Decrease in prepaid expenses	9	44
Increase in trade receivables	(111)	(115)
Increase in other receivables	(34)	(32)
Decrease in inventory	16	171
Increase (decrease) in trade payables	184	(267)
Increase in other payables and advance payment from customers	22	230
Net cash used in operating activities	(1,780)	(2,758)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property, plant and equipment	(1)	(153)
Amounts funded in respect of employee rights upon retirement, net	(11)	(3)
Net cash provided by financing activities	(12)	(156)
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of shares and warrants and exercise of unit purchase option, net of $389 and $685 issuance costs, respectively.	3,168	6,162
Redemption of series D preferred stock	(450)
Repayment of long-term loan		(2,179)
Net cash provided by financing activities	2,718	3,983
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	1	(13)
INCREASE IN CASH AND CASH EQUIVALENTS	927	1,056
BALANCE OF CASH AND CASH EQUIVALENTS AT BEGINNING OF THE PERIOD	3,710	7,516
BALANCE OF CASH AND CASH EQUIVALENTS AT END OF THE PERIOD	4,637	8,572
SUPPLEMENTAL DISCLOSURES OF NON-CASH FINANCING ACTIVITIES:
Placement Agent Fees in connection with short term warrants		107
Classification of Redemption Obligation of Preferred Shares to Mezzanine and Embedded Derivative, see Note 3c	1,943
Issuance costs	$ 262	$ 90