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ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2014
ACCRUED EXPENSES AND OTHER LIABILITIES  
Schedule of accrued expenses and other liabilities
         
December 31,
 
2014
   
2013
 
(in thousands)
       
Accrued payroll and related expenses
 
$
1,935
   
$
1,393
 
Accrued sales incentives and discounts
   
2,671
     
3,025
 
Accrued warranty costs
   
3,836
     
3,410
 
Deferred revenue
   
706
     
836
 
Other
   
483
     
329
 
Total accrued expenses and other liabilities
 
$
9,631
   
$
8,993