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Warranties (Tables)
3 Months Ended
Mar. 31, 2014
Product Warranties Disclosures [Abstract]  
Schedule of Warranty Activity

The activity in our warranty liability was as follows:

 

     Three months ended
March 31,
 
     2014     2013  

Balance, beginning of period

   $ 116      $ 45   

Provision for claims

     51        31   

Product or cash issued to settle claims

     (76     (30
  

 

 

   

 

 

 

Balance, end of period

   $ 91      $ 46