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OTHER LONG-TERM LIABILITIES (Tables)
9 Months Ended
Sep. 30, 2016
Debt Disclosure [Abstract]  
Schedule of other long-term liabilities

Other long-term liabilities consist of the following (in thousands):

 

    September 30,     December 31,  
    2016     2015  
Past due payroll tax obligations, including interest and penalties   $ 4,034     $ 5,730  
Net deferred payments due for Harmonics Acquisition   $ 360     $ 372  
Total     4,394       6,102  
Less current portion     1,933       5,730  
Total other long-term liabilities   $ 2,461     $ 372