Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Schedule of disaggregation of revenues

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Units placed	$	772	$	1,672	$	2,246	$	3,200
Spare parts and warranties		105		98		212		149
Total Revenues	$	877	$	1,770	$	2,458	$	3,349

Schedule of trade receivables and deferred revunues

	June 30,		December 31,
	2019		2018
Trade receivable, net (1)	$	417	$	758
Deferred revenues (1) (2)	$	870	$	668

(1) Balance presented net of unrecognized revenues that were not yet collected.

(2) $184 thousand of December 31, 2018 deferred revenues balance were recognized as revenues during the six months ended June 30, 2019.

Schedule of concentration of credit risk

	June 30,			December 31,
	2019			2018
Customer A		25	%		*	)
Customer B		25	%		*	)
Customer C		23	%		*	)
Customer D		20	%		*	)
Customer E		*	)		28	%
Customer F		*	)		15	%
Customer G		*	)		14	%
Customer H		*	)		13	%
Customer I		*	)		12	%

*) Less than 10%

Schedule of product warranty liability

	US Dollars in thousands
Balance at December 31, 2018	$	304
Provision		105
Usage		(152	)
Balance at June 30, 2019	$	257