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Deferred Warranty Revenue and Warranty Reserve (Tables)
 12 Months Ended
Dec. 31, 2015
Guarantees [Abstract]  
Deferred Warranty Revenue

Deferred warranty revenue at December 31, 2015 will be recognized as revenue as follows:

 

Year

    Amount  

2016

    $ 26   

2017

      20   

2018

      10   

2019

      4   
  

 

 

  

Total

    $ 60   
  

 

 

  
Schedule of Warranty Activity

Activity in the warranty reserve account during the three years ended December 31, 2015 was as follows:

 

     For the years ended December 31,  
     2015      2014      2013  

Balance, beginning of period

    $ 85       $ 116       $ 45   

Provision for warranty claims

      165         173         216   

Product or cash issued to settle claims

      (207 )       (204 )       (145 ) 
  

 

 

     

 

 

     

 

 

  

Balance, end of period

    $ 43       $ 85       $ 116