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Investment In Joint Ventures (Tables)
6 Months Ended
Jun. 30, 2012
Investment In Joint Ventures [Abstract]  
Schedule Of Joint Venture's Carrying Amount
    ZAP Hangzhou     Shanghai Zapple     Total  
 
Balance as of December 31, 2011 $ 554   $ 736   $ 1,290  
Less: investment loss   (136 )   (137 )   (273 )
Balance as of June 30,2012 $ 418     599     1,017  
Schedule Of Losses From Joint Ventures