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ACCRUED EXPENSES (Tables)
 6 Months Ended
Jun. 30, 2017
ACCRUED EXPENSES [Abstract]  
Accrued expenses
Accrued expenses consist of the following:

 
 
June 30,
  
December 31,
 
 
 
2017
  
2016
 
Sales commissions
 
$
2,213
  
$
2,066
 
Subcontracting labor
  
1,308
   
1,370
 
Salaries, bonuses and related benefits
  
15,497
   
17,587
 
Warranty accrual
  
2,417
   
2,718
 
Other
  
7,732
   
7,808
 
 
 
$
29,167
  
$
31,549
 
Schedule of warranty accrual account for the period from the acquisition date
A tabular presentation of the activity within the warranty accrual account for the six months ended June 30, 2017 and 2016 is presented below:

 
 
Six Months Ended June 30,
 
 
 
2017
  
2016
 
Balance, January 1
 
$
2,718
  
$
3,659
 
Charges and costs accrued
  
27
   
91
 
Adjustments related to pre-existing warranties
        
(including changes in estimates)
  
(282
)
  
(735
)
Less repair costs incurred
  
(119
)
  
(278
)
Currency translation
  
73
   
(19
)
Balance, June 30
 
$
2,417
  
$
2,718