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WARRANTIES (Tables)
 12 Months Ended
Dec. 31, 2018
WARRANTIES [Abstract]  
Warranty liability and related activity

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

 

Years ended December 31,

 

2018

 

2017

 

 

 

 

 

 

 

 

Beginning balance

$

          858

 

 

$

           1,223

 

Warranty provisions

 

           123

 

 

 

           47

 

Warranty claims

 

(74

 )

 

 

(126

)

Adjustments to preexisting warranties

 

(251

 )

 

 

(286

 )

Ending balance

$

        656

 

 

$

        858