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ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2013
ACCRUED EXPENSES AND OTHER LIABILITIES  
Schedule of accrued expenses and other liabilities
                 
December 31,
 
2013
   
2012
 
(in thousands)
           
Accrued payroll and related expenses
  $ 1,393     $ 1,122  
Accrued sales incentives and discounts
    3,025       3,326  
Accrued warranty costs
    3,410       2,522  
Deferred revenue
    836       1,389  
Other
    329       641  
Total accrued expenses and other liabilities
  $ 8,993     $ 9,000