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Accrued Warranty Costs
6 Months Ended
Jun. 30, 2011
Accrued Warranty Costs [Abstract]  
Accrued Warranty Costs
NOTE J — Accrued Warranty Costs
 
The Company estimates the amount of warranty claims on sold products that may be incurred based on current and historical data. The actual warranty expense could differ from the estimates made by the Company based on product performance. The following table presents the changes in the Company’s product warranty liability:
 
                 
    2011     2010  
 
Balance at January 1
  $ 4,046     $ 2,760  
Claims paid during the year
    (313 )     (541 )
Additional warranties issued during the first six months
    371       907  
                 
Balance at June 30
  $ 4,104     $ 3,126