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Trade Receivables, Net
 12 Months Ended
Dec. 31, 2011
Receivables [Abstract]  
Trade Receivables, Net
2. Trade Receivables, Net
 
Trade receivables consist of the following:
 
December 31,
  
2011
    
2010
  
Trade receivables
 $ 43,217 $ 32,469
Allowance for doubtful accounts
 (185 ) (277 )
Allowance for discounts
     (807 )     (627 )
    $ 42,225     $ 31,565  
 
In 2011, the largest individual trade receivable balances accounted for 19%, 15%, 14%, and 12% of total trade receivables, respectively.
 
In 2010, the largest individual trade receivable balances accounted for 15%, 15%, 12%, 12%, 11% and 10% of total trade receivables, respectively.