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Warranties (Tables)
9 Months Ended
Sep. 30, 2013
Product Warranties Disclosures [Abstract]  
Schedule of Warranty Activity

The activity in our warranty liability was as follows:

 

     Three months ended
September 30,
    Nine months ended
September 30,
 
     2013     2012     2013     2012  

Balance, beginning of period

   $ 34      $ 88      $ 45        36   

Provision for claims

     58        12        124        110   

Product or cash issued to settle claims

     (22     (71     (99     (117
  

 

 

   

 

 

   

 

 

   

 

 

 

Balance, end of period

   $ 70      $ 29      $ 70      $ 29