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Comprehensive Income (Loss) (Schedule Of Accumulated Comprehensive Income (Loss)) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Comprehensive Income (Loss) [Abstract]    
Unrealized gains (losses) on available-for-sale securities $ (23) $ 18
Unrealized gains (losses) on effective portion of foreign exchange forward contracts, net 111 (323)
Foreign currency translation adjustments (245) (621)
Balance at the end of period $ (157) $ (926)