Taxes on Income - Schedule of Statutory Tax Rate and Effective Income Tax Rate (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Net loss as reported in the statements of operations	$ 3,508	$ 164	$ 4,815	$ 440	$ 9,663
Statutory tax rate			24.00%	25.00%
Income Tax under statutory tax rate			$ 1,156	$ 110
Change in valuation allowance			(1,156)	(110)
Actual income tax

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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

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Amount 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 increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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