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Warranties (Tables)
 6 Months Ended
Jun. 30, 2018
Warranties [Abstract]  
Warranty liability and related activity

Warranty liability and related activity consisted of the following (in thousands):

 

 

Six-Month Periods Ended
June 30,

 

2018


2017

 

 

 



 

 

 

Beginning balance

$

858



$

1,223

 

Warranty provisions

 

80



 

         26

 

Warranty claims


(18

 )


 

(74

) 

Adjustments to preexisting warranties


(222

 )


 

(107

) 

Currency


(5

 )


 

4

 

Ending balance

$

693



$

1,072