Quarterly report pursuant to Section 13 or 15(d)

Fair Value Of Measurements (Schedule Of Assets And Liabilities Measured On A Recurring Basis) (Details)

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Fair Value Of Measurements (Schedule Of Assets And Liabilities Measured On A Recurring Basis) (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 9,910 $ 9,824
Forward exchange contract, asset, fair value 222 905
Forward exchange contract, liability, fair value 1,297 25
Assets fair value 10,132 10,729
Liabilities fair value 1,297 25
Level 1 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities $ 9,910 $ 9,824
Forward exchange contract, asset, fair value
Forward exchange contract, liability, fair value
Assets fair value $ 9,910 $ 9,824
Liabilities fair value
Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Forward exchange contract, asset, fair value $ 222 $ 905
Forward exchange contract, liability, fair value 1,297 25
Assets fair value 222 905
Liabilities fair value $ 1,297 $ 25
Level 3 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities
Forward exchange contract, asset, fair value
Forward exchange contract, liability, fair value
Assets fair value
Liabilities fair value