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Represents information pertaining to reduction standard corporate income taxr rate.

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Description 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 applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Expiration year of each operating loss carryforward included in operating loss carryforward, in CCYY format.

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It represents as a percentage of valuation allowance during period.

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Amount of revaluation of deferred tax assets and labilities.

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Income Taxes (Details Narrative) - USD ($) $ in Thousands					6 Months Ended	12 Months Ended
Income Taxes (Details Narrative) - USD ($) $ in Thousands	Jan. 04, 2017	Apr. 01, 2015	Apr. 01, 2014	Mar. 31, 2014	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Loss Carryforwards [Line Items]
Income tax rate						34.00%	34.00%
Revaluation of deferred tax assets and liabilities						$ 17,300
Accrued liabilities					$ 1,600
Adjustments of accruals and prepaid tax assets					$ 209
Minimum [Member]
Operating Loss Carryforwards [Line Items]
Income tax rate						21.00%
Maximum [Member]
Operating Loss Carryforwards [Line Items]
Income tax rate						35.00%
Foreign Tax Authority [Member] \| Israel Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Standard corporate income tax rate	25.00%
Reduction in standard corporate income tax rate	1.50%
Foreign Tax Authority [Member] \| Israel Tax Authority [Member] \| Minimum [Member]
Operating Loss Carryforwards [Line Items]
Standard corporate income tax rate							25.00%
Foreign Tax Authority [Member] \| Israel Tax Authority [Member] \| Maximum [Member]
Operating Loss Carryforwards [Line Items]
Standard corporate income tax rate							26.50%
Foreign Tax Authority [Member] \| Her Majesty's Revenue and Customs (HMRC) [Member]
Operating Loss Carryforwards [Line Items]
Standard corporate income tax rate		20.00%	21.00%	23.00%
Description of standard corporate income tax rate							<p><font style="font: 10pt Times New Roman, Times, Serif">The rate further reduced to 19% effective April 1, 2017.</font></p>
Foreign Tax Authority [Member] \| Her Majesty's Revenue and Customs (HMRC) [Member] \| Photo Therapeutics Limited [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards						$ 12,800
Percentage of valuation allowance						100.00%
Federal Tax Authority [Member] \| Internal Revenue Service (IRS) [Member]
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards						$ 12,500
Federal Jurisdiction [Member] \| Internal Revenue Service (IRS) [Member] \| Minimum [Member]
Operating Loss Carryforwards [Line Items]
Expiration year						2022
Federal Jurisdiction [Member] \| Internal Revenue Service (IRS) [Member] \| Maximum [Member]
Operating Loss Carryforwards [Line Items]
Expiration year						2037