Taxes on Income (Details) - Income tax rate reconciliation	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income tax rate reconciliation [Abstract]
Statutory federal income tax benefit rate	34.00%	34.00%
State income taxes, net of federal benefit	(12.90%)	4.30%
Federal tax credit refund
Foreign income taxed at different rates	(0.10%)	2.60%
Deferred tax asset valuation allowance	123.30%	(52.80%)
Net operating loss limitation	(156.90%)
Other	12.00%	(1.00%)
Effective income tax rate	(0.60%)	(12.90%)

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

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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 changes in the valuation allowance for deferred tax assets.

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

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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 applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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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 tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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