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Taxes On Income (Narrative) (Details) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2010 USD ($) | Dec. 31, 2012 Special Preferred Enterprise [Member] | Dec. 31, 2012 Manufacturing Plant [Member] | Dec. 31, 2012 Research And Development Center [Member] | Dec. 31, 2012 Development Area A [Member] Preferred Enterprise [Member] | Dec. 31, 2012 Development Area A [Member] Special Preferred Enterprise [Member] | Dec. 31, 2012 Rest Of Country [Member] Preferred Enterprise [Member] | Dec. 31, 2012 Rest Of Country [Member] Special Preferred Enterprise [Member] | Dec. 31, 2012 Minimum [Member] | Dec. 31, 2012 Minimum [Member] Beneficial Enterprise [Member] ILS | Dec. 31, 2012 Minimum [Member] Expansion [Member] USD ($) | Dec. 31, 2012 Minimum [Member] Temporary Order From November 2012 [Member] | Dec. 31, 2012 Minimum [Member] Specific Foreign Market [Member] Beneficial Enterprise [Member] item | Dec. 31, 2012 Maximum [Member] Beneficial Enterprise [Member] | Dec. 31, 2012 Maximum [Member] Expansion [Member] | Dec. 31, 2012 Maximum [Member] Temporary Order From November 2012 [Member] | Dec. 31, 2012 Maximum [Member] Specific Foreign Market [Member] Beneficial Enterprise [Member]
Cancelled future corporate tax rate | 18.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Tax rate | 25.00% | 24.00% | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of years of tax exemption |  |  |  | 10 years | 10 years | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percent of taxable income for the plan |  |  |  |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Number of years of benefited tax rate under the alternative benefits method for the research and development center |  |  |  |  |  | 8 years |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate tax on cash dividends distributed from exempted profits | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Withholding tax deduction from cash dividends distributed from benefited profits | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accelerated depreciation of property, plant and equipment | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of revenue from one country to receive tax benefits |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |  | 75.00%
Market size criteria to receive tax benefits, number of residents (people) |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,000,000 |  |  |  |
Required investment in production machinery and equipment to receive tax benefits |  |  |  |  |  |  |  |  |  |  |  | 300 | $ 300 |  |  |  |  |  |
Time allowed to meet investment in production machinery and equipment to receive tax benefits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years | 3 years |  |
Tax rate in 2011-2012 tax years |  |  |  |  |  |  | 10.00% |  | 15.00% |  |  |  |  |  |  |  |  |  |
Tax rate in 2013-2014 tax years |  |  |  |  |  |  | 7.00% |  | 12.50% |  |  |  |  |  |  |  |  |  |
Tax rate as from 2015 tax year for maximum of 10 years |  |  |  |  |  |  | 6.00% | 5.00% | 12.00% | 8.00% |  |  |  |  |  |  |  |  |
Discounted ratio of the original rax rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 40.00% |  |  |  | 70.00% |
Tax rate applied on revenue according to the temporary order |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |  |
Investment percentage of tax saving obtained |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |
Number of years to invest in an industrial enterprise |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |
Net change in valuation allowance | $ (63) | $ 12 | $ (17) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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