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Product Warranties (Tables)
 12 Months Ended
Dec. 31, 2016
Product Warranties  
Schedule of change in warranty reserve

 

 

 

 

 

 

 

 

 

 

December 31

 

 

    

2016

    

2015

 

Balance as of January 1

 

$
1,252

 

$
1,449

 

Payments and replacement product

 

 
(1,495)

 

 
(677)

 

Additions to warranty reserve for warranties issued during the period

 

 
1,647

 

 
485

 

Change in the warranty reserve for pre-existing warranties

 

 
(2)

 

 
(5)

 

Balance as of December 31

 

$
1,402

 

$
1,252