Taxes on Income (Details) - Income tax rate reconciliation	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income tax rate reconciliation [Abstract]
Statutory federal income tax benefit rate	34.00%	34.00%
State income taxes, net of federal benefit	3.10%	4.80%
Foreign income taxed at different rates	0.70%	7.50%
Deferred tax asset valuation allowance	(29.40%)	(46.40%)
Other	1.30%	(1.20%)
Effective income tax benefit (expense) rate	9.70%	(1.30%)