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Shareholders' Equity (Compensation Expenses Before Tax) (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Compensation expense | $ 440 | $ 3,028 | $ 1,996
Cost Of Revenues |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Compensation expense | 259 | 1,785 | 924
R&D And Marketing Expenses |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Compensation expense | 62 | 425 | 458
General And Administrative Expenses |  |  |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] |  |  |
Compensation expense | $ 119 | $ 818 | $ 614

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