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ACCRUED EXPENSES AND OTHER LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2015
ACCRUED EXPENSES AND OTHER LIABILITIES  
Schedule of accrued expenses and other liabilities
December 31,   2015     2014  
(in thousands)            
Accrued payroll and related expenses   $ 2,060     $ 1,935  
Accrued sales incentives and discounts     3,309       2,671  
Accrued warranty costs     3,405       3,836  
Deferred revenue     721       706  
Other     622       483  
Total accrued expenses and other liabilities   $ 10,117     $ 9,631