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WARRANTIES (Tables)
12 Months Ended
Dec. 31, 2015
Product Warranties Disclosures [Abstract]  
Schedule of warranty liability and related activity

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

 

   Years ended December 31, 
   2015   2014   2013 
Beginning balance  $824   $771   $343 
Warranty provisions   198    328    209 
Warranty claims   (293)   (329)   (283)
Adjustments to preexisting warranties   31    54    502 
Ending balance  $760   $824   $771