Taxes on Income (Details Narrative) (10-K) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Corporate income tax rate	24.00%	25.00%
Israel Tax Authority [Member]
Net operating losses carried forward	$ 5,267
Israel Tax Authority [Member] \| 2016 [Member]
Corporate income tax rate	25.00%
Israel Tax Authority [Member] \| 2017 [Member]
Corporate income tax rate	24.00%
Israel Tax Authority [Member] \| From 2018 [Member]
Corporate income tax rate	23.00%
US Tax Authority [Member]
Corporate income tax rate	35.00%
Net operating losses carried forward	$ 2,987
Operating loss carryforwards, expiration	2035
Tax Act [Member] \| From January 1, 2018 [Member]
Reduced federal tax rate	21.00%

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I)
-URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration